DR. DONALD JIN SONN M.D.
NPI 1821078296
Urology in Springfield, MA

Q: What is Donald Sonn's NPI number?

The NPI number for Donald Sonn is 1821078296. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Q: What is Donald Sonn's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Donald Sonn was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 20, 2006PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

3640 MAIN ST, SUITE 103, SPRINGFIELD, MA 01107(413) 785-5321(413) 731-7130 Get Directions Write a Review

NPPES record last updated: August 18, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Donald Jin Sonn M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DONALD JIN SONN M.D. (NPI 1821078296) is an individual urology provider in Springfield, Massachusetts, licensed in Massachusetts (154091) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1991).

NPPES Registry Identity

NPI1821078296

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameDR. DONALD JIN SONNCredential: M.D.

Location Address3640 MAIN ST, SUITE 103Springfield, MA 01107-1145

Mailing Address3640 Main St, Suite 103Springfield, MA 01107-1145 · (413) 785-5321 · Fax (413) 731-7130

Phone(413) 785-5321

Fax(413) 731-7130

Sole ProprietorNo

Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 1991

Enumeration DateJanuary 20, 2006

Last NPPES UpdateAugust 18, 2025

NPPES CertifiedAugust 18, 2025

✔ NPI 1821078296 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

Licenses✔ Licensed in MA · 154091✔ Licensed in CT · 075900

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

3640 MAIN ST, Springfield, MA 01107

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Donald Jin Sonn M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5597736900

PECOS Enrollment IDI20080929000397, I20260203001984

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Donald Sonn reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Urology Group Of Western New England, P.C.

Same address

Urology

3640 MAIN ST, SUITE 103
Springfield, MA 01107

Reassigned Medicare billing, Massachusetts enrollment
9 clinicians in this Medicare group

NPI 1730263039 (413) 785-5321

Nuvance Health Medical Practice Ct, Inc.

66 mi

Internal Medicine

24 HOSPITAL AVE
Danbury, CT 06810

Reassigned Medicare billing, Connecticut enrollment
818 clinicians in this Medicare group

NPI 1407898117 (203) 739-7742

Lgh Medical Group, Inc.

74 mi

Anesthesiology

295 VARNUM AVE
Lowell, MA 01854

Reassigned Medicare billing, Massachusetts enrollment
220 clinicians in this Medicare group

NPI 1770763880 (978) 937-6350

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 48

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Detection test by nucleic acid for organism, amplified probe technique 87798

A nucleic acid detection test is a procedure to identify specific organisms in your body. This test uses an amplified probe technique, which magnifies the genetic material of the organism, making it easier to detect. It's a precise way to diagnose infections.

1,079 services74 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

863 services596 patients

Bcg live intravesical instillation, 1 mg J9030

BCG live intravesical instillation is a procedure where a weakened form of a bacteria is introduced into your bladder. This helps your body's immune system to fight off certain bladder conditions. The procedure is generally safe and effective.

800 services11 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

668 services536 patients

Detection test for candida species (yeast), amplified probe technique 87481

This test helps identify Candida, a type of fungus often present in the human body. An amplified probe technique is used, which enhances detection of the fungus in a sample. This method increases the accuracy of the test, helping to determine the best treatment.

415 services74 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

395 services327 patients

Manual urinalysis test with examination using microscope, automated 81001

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

395 services280 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

376 services163 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

307 services283 patients

Detection test by nucleic acid for multiple organisms, amplified probe(s) technique 87801

This is a test that identifies various microorganisms in your body using a method called amplified probe technique. It targets specific genetic material (nucleic acids) of the organisms, amplifying them for easy detection. This helps in diagnosing infections accurately.

249 services74 patients

Cell examination of urine, manual 88120

A cell examination of urine, manually done, is a lab test where your urine is studied under a microscope. This helps identify any abnormal cells or substances in your urine, like bacteria or crystals, that could indicate health issues. It's a simple, non-invasive procedure.

176 services121 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

139 services139 patients

Injection, mitomycin, 5 mg J9280

Mitomycin injection is a medication used to treat certain types of cancer. It works by slowing or stopping the growth of cancer cells. The 5mg dosage refers to the amount of the active ingredient, Mitomycin, in the injection.

120 services11 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

109 services92 patients

Bacterial colony count, urine 87086

A bacterial colony count, urine, is a laboratory test that checks a urine sample for bacteria. It helps to identify if an infection is present in the urinary system. High numbers of bacteria in the urine can indicate a urinary tract infection (UTI).

97 services87 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

90 services85 patients

Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique 87500

The detection test by nucleic acid for vancomycin-resistant strep (VRE) is a laboratory procedure. It uses an amplified probe technique to identify specific genetic material in bacteria. This helps determine if the bacteria are resistant to the antibiotic vancomycin.

83 services74 patients

Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique 87640

A detection test for Staphylococcus aureus uses a method called the amplified probe technique. This method identifies the bacteria's unique genetic material, or nucleic acid, helping to confirm its presence. It's a highly accurate way to detect this type of bacteria.

83 services74 patients

Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 87651

This test detects Group A Streptococcus bacteria in your body. It uses an amplified probe technique, which amplifies the bacteria's nucleic acid, making it easier to identify. This test helps diagnose conditions like strep throat or scarlet fever.

83 services74 patients

Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique 87653

A detection test by nucleic acid for Group B Strep uses an amplified probe technique. This test identifies the presence of Group B Strep bacteria in the body. It involves collecting a sample, usually a swab, which is then examined in a lab for the bacteria's genetic material.

83 services74 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

83 services80 patients

Imaging of urinary tract following injection of a contrast agent 74420

This procedure involves injecting a contrast agent into your body to help highlight the urinary tract during imaging. The contrast agent makes your urinary tract more visible on the images, providing detailed information about its structure and function. This can help in diagnosing any potential issues.

60 services53 patients

Imaging guidance for procedure, 60 minutes or less 76000

Imaging guidance is a procedure where real-time images are used to direct medical tools during a treatment. This technique helps to improve accuracy and safety. The procedure typically lasts 60 minutes or less.

59 services52 patients

Simple insertion of temporary bladder tube 51702

This procedure involves placing a temporary tube into your bladder to help with urine flow. It's done when the body can't naturally remove urine. The tube is inserted through a small opening and allows urine to drain into a bag. It's usually a short-term solution.

44 services28 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

36 services34 patients

Waterjet destruction of prostrate accessed through the urethra 0421T

Waterjet destruction of the prostate is a procedure where a thin tube is inserted through your urinary passage to reach the prostate. A stream of water is then used to remove excess tissue blocking urine flow.

34 services34 patients

Instillation of anti-cancer drug into bladder 51720

This procedure involves introducing a medication into the bladder to help fight off harmful cells. A small tube is gently placed into the area where urine exits the body. Through this tube, the medication is delivered directly into the bladder for maximum effectiveness.

32 services23 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

31 services24 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

28 services27 patients

Insertion of stent in ureter using an endoscope 52332

This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.

25 services23 patients

Review by radiologist of ureter or urethra image 74485

This procedure involves a specialist examining images of your urinary tract. The aim is to identify any abnormalities that might be causing your symptoms. It's a safe, non-invasive method that helps provide the best possible care.

25 services22 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

25 services25 patients

Complicated insertion of bladder tube 51703

This procedure involves placing a tube into your bladder to help with urine flow. It may be needed if you have trouble urinating naturally. The process requires specialized skill due to certain complexities but is done with utmost care for your comfort.

22 services16 patients

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416

This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.

22 services22 patients

Crushing of stone of ureter with insertion of stent using an endoscope 52356

This procedure involves using a thin, flexible tube (endoscope) to locate and break down kidney stones in the ureter. After this, a small tube (stent) is inserted to help maintain an open pathway for urine to flow.

21 services17 patients

Catheterization for collection of specimen, single patient, all places of service P9612

Catheterization is a procedure where a small, flexible tube is inserted into your body to collect a specimen for testing. This is done in a safe, sterile environment and is a common method for obtaining a sample. It's typically done in a hospital or clinic.

21 services19 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

19 services19 patients

Simple change of bladder tube 51705

A simple change of bladder tube involves replacing your current urinary drainage tube with a new one. This is done to maintain hygiene and prevent infections. It's a straightforward process, usually causing minimal discomfort, and helps ensure your body can properly dispose of waste fluids.

18 services12 patients

Biopsy of bladder using an endoscope 52204

A biopsy of the bladder using an endoscope is a procedure where a small sample of bladder tissue is collected for testing. An endoscope, a flexible tube with a light and camera, is used to see inside the bladder. This helps to identify any abnormal areas. The procedure helps in the diagnosis of various conditions.

18 services17 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

18 services18 patients

Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope 52310

This is a procedure to remove an object, stone, or tube from your urinary tract. An endoscope, a thin, flexible tube with a light and camera, is used to locate and remove the object. It is a safe and effective way to address the issue.

16 services15 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

16 services16 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

16 services15 patients

Complex measurement of pressure of urine flow in bladder with voiding pressure studies 51728

This procedure measures the pressure in your bladder as it fills and empties. It helps to understand how well your bladder is functioning. Sensors record pressure levels during these processes, providing valuable data for your doctor.

11 services11 patients

Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings 51784

This procedure involves the use of non-invasive devices to record the electrical activity of muscles at specific body openings. It's helpful in understanding muscle function and can assist in diagnosing certain conditions.

11 services11 patients

Insertion of device into abdomen with pressure and urine flow rate study 51797

This procedure involves placing a small device into your abdomen to monitor pressure and urine flow rates. It helps in understanding how well your body is processing and eliminating liquid waste. It's a safe procedure, typically performed under local anesthesia.

11 services11 patients

Insertion of tube into ureter using an endoscope through bladder area 52005

This procedure involves the use of a thin, flexible tool called an endoscope. It's inserted through the body's natural pathways to reach the area where urine is transported. A small tube is then placed in this area to help with urine flow or to remove blockages.

11 services11 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220015

Location30 Locust StreetNorthampton, MA 01060 · Hampshire County

Emergency services Birthing friendly

Lowell General Hospital

Acute Care Hospitals · Lowell, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220063

Location295 Varnum AvenueLowell, MA 01854 · Middlesex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$73.22 typical visit price

range $19.11 – $144.84

Typical copayment $18.30 (range $4.77 – $36.21)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

46%1,051 patients3/55-star benchmark: 85%

Diabetes: Medical Attention for Nephropathy

The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period

94%154 patients4/55-star benchmark: 99%

Documentation of Current Medications in the Medical Record

Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.

94%2,236 patients4/55-star benchmark: 100%

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

89%181 patients4/55-star benchmark: 100%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

100%69 patients5/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

17%521 patients1/55-star benchmark: 99%

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

29%1,018 patients2/55-star benchmark: 90%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

23%1,680 patients1/55-star benchmark: 97%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user

Patients screenedForUse: 81% · 342 patients

Patients tobacco: 76% · 342 patients

29%24 patients2/55-star benchmark: 98%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

100%521 patients5/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

1%521 patients1/55-star benchmark: 59%

Use of High-Risk Medications in the Elderly

Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.

Lower rates are better for this measure.

Patients 2+: 0% · 1,018 patients

0%1,018 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 10

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Indwelling catheter; foley type, two-way latex with coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4338

DME-Orthotic Devices · category DF000N

4 suppliers55 claims63 services$10.14 avg. paid by Medicare

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

8 suppliers38 claims4,692 services$1.66 avg. paid by Medicare

Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352

DME-Orthotic Devices · category DF008N

3 suppliers29 claims5,320 services$6.13 avg. paid by Medicare

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357

DME-Orthotic Devices · category DF000N

7 suppliers64 claims113 services$6.93 avg. paid by Medicare

Urinary drainage bag, leg or abdomen, vinyl, with or without tube, with straps, each A4358

DME-Orthotic Devices · category DF000N

6 suppliers59 claims158 services$5.45 avg. paid by Medicare

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385

DME-Orthotic Devices · category DF010N

3 suppliers14 claims450 services$4.80 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VALLEY MEDICAL ASSOCIATES, PC

Internal Medicine

3640 MAIN ST, SUITE 207
SPRINGFIELD, MA 01107

Hampden County (413) 739-0669

MARIANNE E LANGLOIS PA-C

Physician Assistant

3640 MAIN ST, SUITE 302
SPRINGFIELD, MA 01107

Hampden County (413) 732-4242

DR. RONALD J GAILUN MD

Ophthalmology

3640 MAIN ST, STE 201
SPRINGFIELD, MA 01107

Hampden County (413) 732-2333

DR. JASON L. PORT M.D.

Radiology (Neuroradiology)

3640 MAIN ST, SUITE 101
SPRINGFIELD, MA 01107

Hampden County (413) 781-9000

K. FRANCIS LEE, M.D., P.C.

Surgery

3640 MAIN ST, SUITE 302
SPRINGFIELD, MA 01107

Hampden County (413) 732-4242

DR. GREGORY J FAUST M.D.

Specialist

3640 MAIN ST, SUITE 205
SPRINGFIELD, MA 01107

Hampden County (413) 739-7367

PEDIATRIC GASTROENTEROLOGY AND NUTRITION GROUP, P.C.

Pediatrics (Pediatric Gastroenterology)

3640 MAIN ST, SUITE 204
SPRINGFIELD, MA 01107

Hampden County (413) 304-2650

DR. DAVID DIRAN AGAHIGIAN M.D.

Ophthalmology

3640 MAIN ST, SUITE 201
SPRINGFIELD, MA 01107

Hampden County (413) 732-2333

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Donald Sonn's NPI number?

The NPI number for Donald Sonn is 1821078296. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Where is Donald Sonn located?

Donald Sonn practices at 3640 Main St Suite 103, Springfield, MA 01107. The listed phone number is (413) 785-5321.

What is Donald Sonn's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Donald Sonn enrolled in Medicare?

Yes. Donald Sonn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Donald Sonn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Donald Sonn reassigns Medicare benefits to 3 organizations: Urology Group Of Western New England, P.C. (Springfield, MA), Nuvance Health Medical Practice Ct, Inc. (Danbury, CT) and Lgh Medical Group, Inc. (Lowell, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Donald Sonn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Donald Sonn accept?

Health plans from Anthem Blue Cross and Blue Shield list Donald Sonn as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Donald Sonn affiliated with any hospitals?

According to CMS data, Donald Sonn is affiliated with Cooley Dickinson Hospital Inc,the and Lowell General Hospital.

When was this NPI record last updated?

The NPPES record for Donald Sonn was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.