ALEXANDER POP M.D.
NPI 1922458249
Internal Medicine - Gastroenterology in Middletown, NY

Q: What is Alexander Pop's NPI number?

The NPI number for Alexander Pop is 1922458249. It was assigned to this individual provider in the NPPES registry on June 17, 2016.

Q: What is Alexander Pop's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Alexander Pop was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 June 17, 2016PECOS EnrolledAccepts Medicare Assignment

91.11/100

CMS Quality Rating

95 CRYSTAL RUN RD, MIDDLETOWN, NY 10941(845) 703-6999(845) 703-6297 Get Directions Write a Review

NPPES record last updated: April 7, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 7, 2026, Jun 17, 2016 (2 updates tracked since 2016).

On this page

About Alexander Pop M.d. NPPES

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

ALEXANDER POP M.D. (NPI 1922458249) is an individual gastroenterology provider in Middletown, New York, licensed in New York (316584) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Vassar Brothers Medical Center, and is a graduate of Florida International Univ, College Of Medicine (2016).

NPPES Registry Identity

NPI1922458249

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameALEXANDER POPCredential: M.D.

Location Address95 CRYSTAL RUN RDMiddletown, NY 10941-7001

Mailing Address5501 Old York RdPhiladelphia, PA 19141-3018 · (215) 456-6500

Phone(845) 703-6999

Fax(845) 703-6297

Sole ProprietorNo

Medical School CMSFlorida International Univ, College Of MedicineGraduated 2016

Enumeration DateJune 17, 2016

Last NPPES UpdateApril 7, 20262 updates tracked since enumeration

NPPES CertifiedApril 7, 2026

✔ NPI 1922458249 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in NY · 316584✔ Licensed in CT · 83773

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

95 CRYSTAL RUN RD, Middletown, NY 10941

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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

Alexander Pop 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 ID9335522929

PECOS Enrollment IDI20220815001582

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 Alexander Pop reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Crystal Run Healthcare Physicians LLP

0.1 mi

General Practice

155 CRYSTAL RUN RD
Middletown, NY 10941

Reassigned Medicare billing, New York enrollment
434 clinicians in this Medicare group

NPI 1952376410 (845) 703-6999

Nuvance Health Medical Practice PC

28 mi

Internal Medicine

45 READE PLACE
Poughkeepsie, NY 12601

Reassigned Medicare billing, New York enrollment
638 clinicians in this Medicare group

NPI 1437358033 (845) 475-9661

Nuvance Health Medical Practice Ct, Inc.

47 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

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 20

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.

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.

107 services92 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43259

This procedure involves a flexible tube with a camera, called an endoscope, inserted through your mouth to examine your esophagus, stomach, and upper small bowel. An ultrasound device on the endoscope helps get detailed images. It's safe and helps diagnose various conditions.

73 services73 patients

Exam of common bile and/or pancreatic duct using a flexible endoscope 43273

This procedure, known as an ERCP, involves a flexible tube with a camera, called an endoscope, being gently passed down your throat to examine your common bile or pancreatic duct. It helps doctors diagnose and treat conditions affecting these areas.

73 services54 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

64 services63 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.

61 services61 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

53 services50 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

47 services40 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

41 services38 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.

39 services32 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

31 services30 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

31 services31 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

31 services28 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

31 services31 patients

Removal of large bowel tissue using a flexible endoscope 45390

This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.

25 services24 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.

19 services19 patients

Incision of pancreatic outlet using a flexible endoscope 43262

This procedure involves a small cut in the outlet of the pancreas using a flexible tube with a camera, called an endoscope. It helps doctors diagnose and treat conditions affecting the pancreas, enhancing patient comfort and recovery.

19 services19 patients

Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43242

This procedure involves using an ultrasound to guide a needle to specific areas in the esophagus, stomach, or upper small bowel. A flexible endoscope is used to reach these areas. The needle collects a small sample for testing.

16 services16 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

14 services14 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

12 services12 patients

Removal of stent from pancreatic or bile duct using a flexible endoscope 43275

This procedure involves removing a stent from your pancreatic or bile duct. A flexible endoscope, a thin tube with a light and camera, is used to locate the stent. Once found, it's carefully extracted. This helps maintain proper duct function.

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.

Vassar Brothers Medical Center

Acute Care Hospitals · Poughkeepsie, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330023

Location45 Reade PlacePoughkeepsie, NY 12601 · Dutchess County

Emergency services Birthing friendly

Garnet Health Medical Center

Acute Care Hospitals · Middletown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330126

Location707 East Main StreetMiddletown, NY 10940 · Orange County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10941 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

$141.77 typical visit price

range $61.88 – $187.05

Typical copayment $35.44 (range $15.47 – $46.76)

Most-billed visit code 99204

Established Patient

$108.56 typical visit price

range $19.92 – $151.94

Typical copayment $27.14 (range $4.98 – $37.98)

Most-billed visit code 99214

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.

91.11/100

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

Scored as part of a group practice

Quality

68.71

Promoting Interoperability

100

Improvement Activities

Cost

98.42

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.

RICHARD ESCANO P.T.

Physical Therapist