NPPES file of Aug 9, 2026

Barry L. Marks, DO

Geriatric Medicine (Family Medicine) Physician · Philadelphia, PA

Barry L. Marks, DO is a geriatric medicine (family medicine) physician with a practice address in Philadelphia, Pennsylvania, and NPI 1043232531, issued on Jul 24, 2006. Check the license (Pennsylvania OS00999L, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043232531
Name
Barry L. Marks
Credential
DO
Primary taxonomy
Geriatric Medicine (Family Medicine) Physician 207QG0300X
License number
OS00999L PA
Self-reported in NPPES; status is on the state search
Practice location
6302 Morton St, Philadelphia, PA 19144
Phone
(215) 843-8578
Enumerated
Jul 24, 2006
Record last updated
Mar 9, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(215) 843-3253
Medicaid ID
0622421 PA
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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8 nearest geriatric medicine (family medicine) physician records → All 134 in Pennsylvania → Look up another NPI →

Verify Barry L. Marks 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 OS00999L    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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Industry payments in 2024: $73.35

1 payment: food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 460 providers of this specialty with any payment received $1,218.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Barry Marks$73.35
  2. Specialty average$1,218.49

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

Barry L. Marks among 134 geriatric medicine (family medicine) physician records in Pennsylvania

Barry L. Marks, DO is one of 134 geriatric medicine (family medicine) physician records with a practice address in Pennsylvania. 78% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 50% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2015 · 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 207QG0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Family Medicine) Physician providers in Pennsylvania

There are 134 geriatric medicine (family medicine) physician records in Pennsylvania.

All 134 in Pennsylvania → Every provider in Philadelphia → Geriatric Medicine (Family Medicine) Physician nationwide →

The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes

  1. Denise Christian, M.D.Philadelphia, PA 191441003953159
  2. Tushar Kumar, DOPhiladelphia, PA 191451568038578
  3. Vikram Patel, M.DPhiladelphia, PA 191341811073422
  4. Patrick Waters, D.O., F.A.A.F.PPhiladelphia, PA 191321356302715
  5. Katherine Galluzzi, DOPhiladelphia, PA 191311336140979
  6. Nicol Joseph, DOPhiladelphia, PA 191311568494029
  7. Robert Smith, M.D.Philadelphia, PA 191301255354999
  8. Linda Tomko, M.D.Philadelphia, PA 191301164443412

Common questions

What is Barry L. Marks, DO's NPI number?

Barry L. Marks, DO's National Provider Identifier (NPI) is 1043232531, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Barry L. Marks, DO located?

The NPPES record lists a practice address at 6302 Morton St, Philadelphia, PA, 19144. Phone: (215) 843-8578. Providers update this record themselves, so call before visiting.

How can I verify Barry L. Marks, DO's license?

NPPES lists Pennsylvania license number OS00999L, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.