NPPES file of Aug 9, 2026

Christopher D. O'Brien, MD

Pulmonary Disease Physician · Philadelphia, PA

Christopher D. O'Brien, MD is a pulmonary disease physician with a practice address in Philadelphia, Pennsylvania, and NPI 1962643254, issued on Mar 16, 2009. Check the license (Pennsylvania MD050568L, 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
1962643254
Name
Christopher D. O'Brien
Credential
MD
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
MD050568L PA
Self-reported in NPPES; status is on the state search
Practice location
51 N. 39TH Street, Philadelphia, PA 19104
Phone
(215) 662-8767
Enumerated
Mar 16, 2009
Record last updated
Jan 30, 2012 (not updated in 14 years: call before relying on the address or phone)
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 51 N. 39TH Street

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

  1. Khalid Ahmed, MDHospitalist Physician1144840091
  2. George Ahtardis, MDGastroenterology Physician1245287465
  3. Andrea Apter, MDAllergy & Immunology Physician1164454419
  4. Robyn Barrett, MDDiagnostic Radiology Physician1659309748
  5. Jenny Baum, CRNPAdult Health Nurse Practitioner1528600202
  6. Timothy Clark, MDVascular & Interventional Radiology Physician1588629885

Verify Christopher D. O'Brien 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 MD050568L
    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: $149.53

2 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher O'Brien$149.53
  2. Specialty average$5,159.88

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

Christopher D. O'Brien among 779 pulmonary disease physician records in Pennsylvania

Christopher D. O'Brien, MD is one of 779 pulmonary disease physician records with a practice address in Pennsylvania. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.

  • NPI issued2009 · 60% of these records are older, 36% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 73% of these records are
  • Record last updated2012 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Pennsylvania

There are 779 pulmonary disease physician records in Pennsylvania.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Steven Albelda, MDPhiladelphia, PA 191041730111733
  2. Lisa Bellini, MDPhiladelphia, PA 191041871512251
  3. Maria Crespo, MDPhiladelphia, PA 191041376515965
  4. Joel Deitz, MDPhiladelphia, PA 191041215967005
  5. John Hansen-Flaschen, MDPhiladelphia, PA 191041316971484
  6. Cheilonda Johnson, M.D.Philadelphia, PA 191041053367268
  7. Paul Lanken, MDPhiladelphia, PA 191041245262245
  8. Greg Lipschik, MDPhiladelphia, PA 191041669491049

Common questions

What is Christopher D. O'Brien, MD's NPI number?

Christopher D. O'Brien, MD's National Provider Identifier (NPI) is 1962643254, issued on Mar 16, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Christopher D. O'Brien, MD located?

The NPPES record lists a practice address at 51 N. 39TH Street, Philadelphia, PA, 19104. Phone: (215) 662-8767. Providers update this record themselves, so call before visiting.

How can I verify Christopher D. O'Brien, MD's license?

NPPES lists Pennsylvania license number MD050568L, 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.

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.