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ROBERT S DUDNICK MD
NPI 1295833630
Internal Medicine - Gastroenterology in Philadelphia, PA

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment
5401 OLD YORK RD, KLEIN, SUITE 202, PHILADELPHIA, PA 19141(215) 456-8210(215) 329-1085 Get Directions Write a Review

NPPES record last updated: February 20, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Robert S Dudnick Md NPPES

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

ROBERT S DUDNICK MD (NPI 1295833630) is an individual gastroenterology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD045109E) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1295833630
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameROBERT S DUDNICKCredential: MD
Location Address5401 OLD YORK RD, KLEIN, SUITE 202Philadelphia, PA 19141-3030
Mailing Address5401 Old York Rd, Klein, Suite 202Philadelphia, PA 19141-3030 · (215) 456-8210 · Fax (215) 329-1085
Phone(215) 456-8210
Fax(215) 329-1085
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateSeptember 20, 2006
Last NPPES UpdateFebruary 20, 2015
✔ NPI 1295833630 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in PA · MD045109E
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.
5401 OLD YORK RD, Philadelphia, PA 19141
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINE84739
Medicaid05154105001PA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.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

Robert S Dudnick 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 ID5799879052
PECOS Enrollment IDI20070917000616
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

2

Medicare enrollment records show Robert Dudnick reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Einstein Practice Plan Inc
Same address
Transplant Surgery
5401 OLD YORK ROAD, SUITE 509
Philadelphia, PA 19141
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,205 clinicians in this Medicare group
NPI 1013969690 (215) 456-4985
University Of Penn - Medical Group
6.6 mi
Gastroenterology
3400 SPRUCE ST, 3 DULLES BUILDING
Philadelphia, PA 19104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 141 clinicians in this Medicare group
NPI 1477660173 (215) 349-8222

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 5

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.

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.
42 services41 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.
38 services37 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.
25 services25 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.
20 services20 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19141 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

Referred Medical Equipment & Supplies CMS DME claims 4

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

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385
DME-Orthotic Devices · category DF010N
1 supplier14 claims280 services$4.92 avg. paid by Medicare
Ostomy pouch, drainable, with barrier attached, with filter (1 piece), each A4424
DME-Orthotic Devices · category DF010N
1 supplier13 claims260 services$4.60 avg. paid by Medicare
Skin barrier, wipes or swabs, each A5120
DME-Orthotic Devices · category DF010N
1 supplier14 claims350 services$0.23 avg. paid by Medicare
Skin barrier; solid, 6 x 6 or equivalent, each A5121
DME-Orthotic Devices · category DF010N
1 supplier13 claims260 services$6.33 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.

MORTON S MANDELL M.D.
Internal Medicine (Cardiovascular Disease)
5401 OLD YORK RD, KLEIN BUILDING, SUITE 401
PHILADELPHIA, PA 19141
Philadelphia County (215) 329-0633
SHAHRIAR YAZDANFAR MD
Internal Medicine (Cardiovascular Disease)
5401 OLD YORK RD, KLEIN 404
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7266
DR. SARAH PERLOFF D.O.
Internal Medicine (Infectious Disease)
5401 OLD YORK RD, KLEIN BLDG. SUITE 331
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-6948
CHARLOTTA SWAIN CRNP
Nurse Practitioner (Obstetrics & Gynecology)
5401 OLD YORK RD, SUITE 400
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-3440
TAMIA MATTHEWS CRNP
Internal Medicine
5401 OLD YORK RD, KLEIN363
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-6417
RENEE WYNN CRNP
Nurse Practitioner (Women's Health)
5401 OLD YORK RD
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-8220
TAQI FT KHAN MD
Transplant Surgery
5401 OLD YORK RD, KLEIN BLDG STE 509
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-4985
EINSTEIN PRACTICE PLAN, INC.
Ophthalmology
5401 OLD YORK RD, SUITE 201
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7150

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 Robert Dudnick's NPI number?

The NPI number for Robert Dudnick is 1295833630. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Robert Dudnick located?

Robert Dudnick practices at 5401 Old York Rd Klein, Suite 202, Philadelphia, PA 19141. The listed phone number is (215) 456-8210.

What is Robert Dudnick's specialty?

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

Is Robert Dudnick enrolled in Medicare?

Yes. Robert Dudnick 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 Robert Dudnick's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Dudnick reassigns Medicare benefits to 2 organizations: Einstein Practice Plan Inc (Philadelphia, PA) and University Of Penn - Medical Group (Philadelphia, PA). 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 Robert Dudnick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Dudnick accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Robert Dudnick 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 Robert Dudnick affiliated with any hospitals?

According to CMS data, Robert Dudnick is affiliated with Hospital Of Univ Of Pennsylvania.

When was this NPI record last updated?

The NPPES record for Robert Dudnick was last updated on February 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.