Registry data as of Aug 27, 2026

Stephen Rittenhouse, D.O.

Family Medicine Physician · Marietta, PA

Stephen Rittenhouse, D.O. is a family medicine physician with a practice address in Marietta, Pennsylvania, and NPI 1629050257, issued on Nov 18, 2005. Check the license (Pennsylvania OS012218, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1629050257
Name
Stephen Rittenhouse
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OS012218 PA
Self-reported in NPPES; status is on the state search
Practice location
1159 River Road, Marietta, PA 17547
Phone
(717) 426-1131
Enumerated
Nov 18, 2005
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 1159 River Road

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

  1. Ellen Wager, PA-CFamily Medicine Physician1427915263

Verify Stephen Rittenhouse 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 OS012218
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

2.3 times the Medicare Part D claims of the average family medicine physician in 2024

8,171 Medicare Part D claims for 593 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 120 claims were for opioids.

  1. Stephen Rittenhouse8,171
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium405 claims
  2. Amlodipine Besylate370 claims
  3. Omeprazole322 claims
  4. Lisinopril268 claims
  5. Levothyroxine Sodium248 claims
  6. Rosuvastatin Calcium244 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 one group practice

  1. Lancaster General Medical GroupMarietta, PA

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

8 family medicine physician records list a practice address in Marietta

They are 8 of the 26 NPPES records with a practice address in Marietta, and 7,483 family medicine physician records in Pennsylvania.

Other family medicine physician records in Pennsylvania

  1. Christopher AaronCresson, PA1083879860
  2. Jose Abad, MDPittsburgh, PA1295962546
  3. Mario Abad, MDDuncannon, PA1710022975
  4. Ray Abarintos, MDPhiladelphia, PA1417339516
  5. Jasim Abbasi, DOErie, PA1396537452
  6. Daived Abboud, M.D.Allentown, PA1295189322
  7. Ihab Abdelaal, D.O.Macungie, PA1588944938
  8. Tony Abdelmaseeh, M.DJermyn, PA1073910923
  9. Adam Abdulally, MDPittsburgh, PA1184861544
  10. Maimuna AbdullahiLebanon, PA1477344018

Common questions

What is Stephen Rittenhouse, D.O.'s NPI number?

Stephen Rittenhouse, D.O.'s National Provider Identifier (NPI) is 1629050257, issued on Nov 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Rittenhouse, D.O. located?

The NPPES record lists a practice address at 1159 River Road, Marietta, PA, 17547. Phone: (717) 426-1131. Providers update this record themselves, so call before visiting.

How can I verify Stephen Rittenhouse, D.O.'s license?

NPPES lists Pennsylvania license number OS012218, 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 Rittenhouse, D.O. prescribe under Medicare Part D?

In 2024, Stephen Rittenhouse, D.O. had 8,171 Medicare Part D claims for 593 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.