MICHAEL ANDREW ISAACSON MD
NPI 1225262314
Urology in Rockville, MD

Q: What is Michael Isaacson's NPI number?

The NPI number for Michael Isaacson is 1225262314. It was assigned to this individual provider in the NPPES registry on May 5, 2009.

Q: What is Michael Isaacson'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 Michael Isaacson was last updated on March 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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 May 05, 2009PECOS EnrolledAccepts Medicare Assignment

9420 KEY WEST AVE, SUITE 420, ROCKVILLE, MD 20850(301) 258-1919(301) 258-9180 Get Directions Write a Review

NPPES record last updated: March 12, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 12, 2025, Mar 14, 2016 (2 updates tracked since 2016).

On this page

About Michael Andrew Isaacson Md NPPES

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

MICHAEL ANDREW ISAACSON MD (NPI 1225262314) is an individual urology provider in Rockville, Maryland, licensed in Maryland (D0070567) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS, is affiliated with Adventist Healthcare Shady Grove Medical Center, and is a graduate of George Washington University School Of Medicine (2004).

NPPES Registry Identity

NPI1225262314

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameMICHAEL ANDREW ISAACSONCredential: MD

Location Address9420 KEY WEST AVE, SUITE 420Rockville, MD 20850-3334

Mailing Address10200 Grand Central Ave Ste 220Owings Mills, MD 21117-4366

Phone(301) 258-1919

Fax(301) 258-9180

Sole ProprietorNo

Medical School CMSGeorge Washington University School Of MedicineGraduated 2004

Enumeration DateMay 5, 2009

Last NPPES UpdateMarch 12, 20252 updates tracked since enumeration

NPPES CertifiedMarch 12, 2025

✔ NPI 1225262314 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in MD · D0070567

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.

9420 KEY WEST AVE, Rockville, MD 20850

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Other Identifiers 1

Medicaid420050100MD

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

Michael Andrew Isaacson Md 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 ID7012032840

PECOS Enrollment IDI20100916000342, I20221226000204

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 Reassignment

Medicare enrollment records show Michael Isaacson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chesapeake Urology Associates, LLC

Same address

Urology

9420 KEY WEST AVE STE 420
Rockville, MD 20850

Reassigned Medicare billing, District of Columbia and Maryland enrollments
Also billed through NPI 1700153921 (Maryland)
96 clinicians in this Medicare group

NPI 1780409441 (301) 258-1919

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 33

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.

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.

825 services631 patients

Principal care management services for a single high-risk disease, first 30 minutes of clinical staff time directed by health care professional, per calendar month 99426

Principal care management services focus on managing a single high-risk disease. This involves a health care professional directing clinical staff for the first 30 minutes each month. The aim is to monitor your health, coordinate care, and provide necessary support for your disease management.

740 services101 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.

595 services469 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

479 services66 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.

328 services277 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.

309 services276 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.

222 services189 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

170 services45 patients

Principal care management services for a single high-risk disease, each additional 30 minutes of clinical staff time directed by health care professional, per calendar month 99427

Principal Care Management (PCM) services focus on managing a single high-risk disease. It involves additional 30 minutes of clinical staff time per month, overseen by a healthcare professional. This includes monitoring your health, coordinating care, and developing a personalized treatment plan.

159 services56 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.

134 services122 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.

126 services126 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.

80 services68 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

35 services35 patients

Tissue marker, implantable, any type, each A4648

An implantable tissue marker is a tiny device placed in the body to mark the location of a specific area. It helps doctors accurately identify the spot for future reference, such as during treatment or follow-up visits. It's a safe procedure and usually painless.

31 services23 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.

28 services27 patients

Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month 99489

Complex chronic care management is a service for patients with multiple chronic conditions. It involves an additional 60 minutes per month of clinical staff time directed by a healthcare professional. This service assists in managing your health conditions effectively.

27 services13 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.

25 services17 patients

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

25 services23 patients

Placement of device in prostate for radiation therapy 55876

This procedure involves placing a small device in the gland below the bladder to deliver radiation therapy. This helps target therapy directly to the concerned area, potentially reducing side effects and improving treatment effectiveness.

23 services23 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.

23 services21 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.

22 services19 patients

Injection of biodegradable material next to prostate 55874

This procedure involves the introduction of a biodegradable substance near a gland located in the lower abdomen. This substance helps to create a barrier between the gland and nearby tissues, aiding in the precise delivery of treatment to the intended area.

22 services22 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.

21 services21 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

17 services16 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.

17 services11 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.

17 services17 patients

Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month 99487

Complex chronic care management is a service for patients with two or more long-term health conditions. It involves a healthcare professional directing clinical staff in providing care for the first 60 minutes each month. This helps manage your health conditions effectively.

17 services13 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.

16 services16 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.

15 services15 patients

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

15 services15 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.

14 services14 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.

14 services14 patients

Ultrasound scan of scrotum 76870

An ultrasound scan of the scrotum is a non-invasive imaging test. It uses sound waves to create pictures of the structures within the lower abdominal area. This helps to assess any discomfort or abnormalities you might be experiencing. The procedure is safe and painless.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210057

Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20850 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

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

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

DME-Orthotic Devices · category DF008N

4 suppliers35 claims4,140 services$1.75 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

5 suppliers30 claims6,745 services$6.17 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.

JOHN M SCHRUEFER MD

Internal Medicine

9420 KEY WEST AVE, #204
ROCKVILLE, MD 20850

Montgomery County (630) 725-2730

ACCUCARE SEDATION, LLC

Specialist

9420 KEY WEST AVE, SUITE 104
ROCKVILLE, MD 20850

Montgomery County (301) 838-7665

CHRISTOPHER HO-HON CHEUNG

Physical Therapist

9420 KEY WEST AVE, SUITE 300
ROCKVILLE, MD 20850

Montgomery County (301) 251-1433

STEPHEN ANDREW LAKNER MD

Obstetrics & Gynecology

9420 KEY WEST AVE, STE 415
ROCKVILLE, MD 20850

Montgomery County (301) 279-9400

ANDREA CAROLINA ESPARZA

Counselor (Mental Health)

9420 KEY WEST AVE
ROCKVILLE, MD 20850

Montgomery County (301) 579-0089

DOROTHY CHIU LEE MD

Obstetrics & Gynecology

9420 KEY WEST AVE, STE 415
ROCKVILLE, MD 20850

Montgomery County (301) 279-9400

PROACTIVE HAND AND PHYSICAL THERAPY

Clinic/Center (Physical Therapy)

9420 KEY WEST AVE, SUITE 140
ROCKVILLE, MD 20850

Montgomery County (301) 545-1677

BRET JOSEPH GREBOWSKY PT, DPT

Physical Therapist

9420 KEY WEST AVE, SUITE 140
ROCKVILLE, MD 20850

Montgomery County (301) 545-1677

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 Michael Isaacson's NPI number?

The NPI number for Michael Isaacson is 1225262314. It was assigned to this individual provider in the NPPES registry on May 5, 2009.

Where is Michael Isaacson located?

Michael Isaacson practices at 9420 Key West Ave Suite 420, Rockville, MD 20850. The listed phone number is (301) 258-1919.

What is Michael Isaacson's specialty?

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

Is Michael Isaacson enrolled in Medicare?

Yes. Michael Isaacson 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 organization bills Medicare for Michael Isaacson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Isaacson reassigns Medicare benefits to Chesapeake Urology Associates, LLC (Rockville, MD). The 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 Michael Isaacson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Michael Isaacson affiliated with any hospitals?

According to CMS data, Michael Isaacson is affiliated with Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Michael Isaacson was last updated on March 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.