Robert Joseph Anderson, M.S.
Internal Medicine Physician · Danville, PA
Robert Joseph Anderson, M.S. is an internal medicine physician with a practice address in Danville, Pennsylvania, and NPI 1235758947, issued on Apr 13, 2020. Check the license (Pennsylvania OS022932, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Robert Joseph Anderson
- Credential
- M.S.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS022932 PA
Self-reported in NPPES; status is on the state search - Practice location
- Geisinger Medical Center 100 North Academy Avenue, Danville, PA 17822
- Phone
- (570) 214-9585
- Enumerated
- Apr 13, 2020
- Record last updated
- Dec 4, 2025
- Fax
- (570) 214-9519
- Medicare enrollment
- Enrolled (PECOS I20230804002094); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at Geisinger Medical Center 100 North Academy Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carlos Estrada Velez, M.D.Internal Medicine Physician1205009099
- James Gosney, MDStudent in an Organized Health Care Education/Training Program1518427962
Verify Robert Joseph Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS022932Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
233 Medicare Part D claims for 69 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Furosemide22 claims
- Metoprolol Succinate20 claims
- Omeprazole14 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
- Geisinger ClinicDanville, PA
- Geisinger-HM Joint Venture LLCMuncy, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Joseph Anderson among 7,300 internal medicine physician records in Pennsylvania
Robert Joseph Anderson, M.S. 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 2020, is newer than 77% of them.
- NPI issued2020 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2020 · median 2008 among the 4,208 with a school on file
- Record last updated2025 · 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).
110 internal medicine physician records list a practice address in Danville
They are 110 of the 3,116 NPPES records with a practice address in Danville, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Danville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Balz, M.D.Danville, PA 178221427022318
- Gregory Benkovic, M.D.Danville, PA 178221114991866
- Greg Burke, M.D.Danville, PA 178221659346575
- Joseph Colancecco, M.D.Danville, PA 178221083680581
- Kenneth Cover, M.D.Danville, PA 178221639103211
- Mary Harris, M.D.Danville, PA 178221083677991
- Robert Hergan, M.D.Danville, PA 178221720057169
- Kerrie Hoffman, OTR/L, MDDanville, PA 178221093933541
Common questions
What is Robert Joseph Anderson, M.S.'s NPI number?
Robert Joseph Anderson, M.S.'s National Provider Identifier (NPI) is 1235758947, issued on Apr 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Robert Joseph Anderson, M.S. located?
The NPPES record lists a practice address at Geisinger Medical Center 100 North Academy Avenue, Danville, PA, 17822. Phone: (570) 214-9585. Providers update this record themselves, so call before visiting.
How can I verify Robert Joseph Anderson, M.S.'s license?
NPPES lists Pennsylvania license number OS022932, 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 Robert Joseph Anderson, M.S. prescribe under Medicare Part D?
In 2024, Robert Joseph Anderson, M.S. had 233 Medicare Part D claims for 69 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.