NPPES file of Aug 9, 2026

Stephen M. Humbert, DO

Internal Medicine Physician · Havertown, PA

Stephen M. Humbert, DO is an internal medicine physician with a practice address in Havertown, Pennsylvania, and NPI 1871595041, issued on Jun 1, 2005. Check the license (Pennsylvania OS007256L, 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
1871595041
Name
Stephen M. Humbert
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OS007256L PA
Self-reported in NPPES; status is on the state search
Practice location
2510 W Township Line RD, Havertown, PA 19083
Phone
(484) 450-4500
Enumerated
Jun 1, 2005
Record last updated
Jun 30, 2022
Fax
(484) 450-0575
Medicaid ID
0014679730001 PA
Medicare enrollment
Enrolled (PECOS I20100616000380); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2510 W Township Line RD

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

  1. Raymond Ferraro, PAFamily Medicine Physician1063451748
  2. Joan Ward, PA-CMedical Physician Assistant1548498611

Verify Stephen M. Humbert 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 OS007256L
    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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3.7 times the Medicare Part D claims of the average internal medicine physician in 2024

11,714 Medicare Part D claims for 703 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 22 claims were for opioids.

  1. Stephen Humbert11,714
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium516 claims
  2. Amlodipine Besylate408 claims
  3. Pantoprazole Sodium406 claims
  4. Levothyroxine Sodium388 claims
  5. Lisinopril343 claims
  6. Omeprazole325 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.

Bills Medicare through 2 group practices

  1. Novacare Outpatient Rehabilitation East, Inc.Collegeville, PA
  2. Penn Medicine-PmaBala Cynwyd, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephen M. Humbert among 7,300 internal medicine physician records in Pennsylvania

Stephen M. Humbert, DO is one of 7,300 internal 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1989 · median 2008 among the 4,208 with a school on file
  • Record last updated2022 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 internal medicine physician records list a practice address in Havertown

They are 10 of the 745 NPPES records with a practice address in Havertown, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Veronica Angulo Diaz, M.DHavertown, PA 190831871848671
  2. Patricia Clancy, M.D.Havertown, PA 190831649228552
  3. Leroy Fleischer, M.D.Havertown, PA 190831902809791
  4. Sean Flynn, D.O.Havertown, PA 190831386888121
  5. Sakthipriya Janarthanan, MDHavertown, PA 190831275828253
  6. Xiaobin Li, M.D.Havertown, PA 190831346225034
  7. Lin LiuHavertown, PA 190831063809473
  8. Kyong Bin Park, M.D.Havertown, PA 190831023036134

Common questions

What is Stephen M. Humbert, DO's NPI number?

Stephen M. Humbert, DO's National Provider Identifier (NPI) is 1871595041, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephen M. Humbert, DO located?

The NPPES record lists a practice address at 2510 W Township Line RD, Havertown, PA, 19083. Phone: (484) 450-4500. Providers update this record themselves, so call before visiting.

How can I verify Stephen M. Humbert, DO's license?

NPPES lists Pennsylvania license number OS007256L, 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 Stephen M. Humbert, DO prescribe under Medicare Part D?

In 2024, Stephen M. Humbert, DO had 11,714 Medicare Part D claims for 703 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.