NPPES file of Aug 9, 2026

David L. Fellenbaum, PAC

Nephrology Physician · Philadelphia, PA

David L. Fellenbaum, PAC is a nephrology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1184707895, issued on Oct 24, 2006. Check the license (Pennsylvania MH000179L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184707895
Name
David L. Fellenbaum
Credential
PAC
Primary taxonomy
Nephrology Physician 207RN0300X
License number
MH000179L PA
Self-reported in NPPES; status is on the state search
Practice location
235 N Broad St, Philadelphia, PA 19107
Phone
(215) 762-7785
Enumerated
Oct 24, 2006
Record last updated
Sep 21, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(215) 568-6007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 235 N Broad St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lev BlekherPodiatrist1578231353
  2. Steven Boc, DPMPodiatrist1750381299
  3. Joseph Brezin, MDNephrology Physician1154417541
  4. Larry Krevolin, DONephrology Physician1265532923
  5. Charles Lyerly, DPMFoot & Ankle Surgery Podiatrist1104443100
  6. Maria Mendez, MDNephrology Physician1245326636

Verify David L. Fellenbaum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MH000179L
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

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97% fewer Medicare Part D claims than the average nephrology physician in 2024

44 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 86% of claims.

  1. David Fellenbaum44
  2. Specialty average1,465

Most prescribed

  1. Clinolipid37 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 88.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score68.2
  2. Costout of 100 · 30%72.9
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $16.35

1 payment: food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Fellenbaum$16.35
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

David L. Fellenbaum among 651 nephrology physician records in Pennsylvania

David L. Fellenbaum, PAC is one of 651 nephrology physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 51% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2010 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Pennsylvania

There are 651 nephrology physician records in Pennsylvania.

The 8 nephrology physician records with the nearest ZIP codes

  1. Joseph Brezin, MDPhiladelphia, PA 191071154417541
  2. Bonita Falkner, M.DPhiladelphia, PA 191071790706869
  3. George FrancosPhiladelphia, PA 191071457374530
  4. Rakesh Gulati, MDPhiladelphia, PA 191071770571937
  5. Michael Heifets, MDPhiladelphia, PA 191071265471403
  6. Larry Krevolin, DOPhiladelphia, PA 191071265532923
  7. Sandra Levison, MDPhiladelphia, PA 191071841232832
  8. Marie Lim, MDPhiladelphia, PA 191071033219795

Common questions

What is David L. Fellenbaum, PAC's NPI number?

David L. Fellenbaum, PAC's National Provider Identifier (NPI) is 1184707895, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David L. Fellenbaum, PAC located?

The NPPES record lists a practice address at 235 N Broad St, Philadelphia, PA, 19107. Phone: (215) 762-7785. Providers update this record themselves, so call before visiting.

How can I verify David L. Fellenbaum, PAC's license?

NPPES lists Pennsylvania license number MH000179L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David L. Fellenbaum, PAC prescribe under Medicare Part D?

In 2024, David L. Fellenbaum, PAC had 44 Medicare Part D claims; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is David L. Fellenbaum, PAC's MIPS final score?

The 2023 MIPS final score is 88.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.