Michael Arthur Santos, M.D.
Internal Medicine Physician · Lebanon, PA
Michael Arthur Santos, M.D. is an internal medicine physician with a practice address in Lebanon, Pennsylvania, and NPI 1316280639, issued on Apr 4, 2013. Check the license (Pennsylvania MD457759, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Michael Arthur Santos
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD457759 PA
MD16659 RI
1023662 MA
Self-reported in NPPES; status is on the state search - Practice location
- 252 S 4TH St, Lebanon, PA 17042
- Phone
- (717) 270-4876
- Enumerated
- Apr 4, 2013
- Record last updated
- Jun 22, 2026
- Fax
- (717) 270-3875
- Medicare enrollment
- Enrolled (PECOS I20190627001901); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 252 S 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Al-Obaydi, MDHospitalist Physician1861924995
- McKenna Algier, PA-CPhysician Assistant1407497324
- Teresa Angel, CRNP-BCAcute Care Nurse Practitioner1093567877
- Michael Ash, CRNACertified Registered Nurse Anesthetist1750839809
- Samuel Badger, CRNACertified Registered Nurse Anesthetist1710176003
- Kaley Barrett, CRNPFamily Nurse Practitioner1053912170
Verify Michael Arthur Santos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD457759Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
102 Medicare Part D claims for 48 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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
- Lifespan Physician Group IncProvidence, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Arthur Santos among 7,300 internal medicine physician records in Pennsylvania
Michael Arthur Santos, M.D. 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 2013, is newer than 57% of them.
- NPI issued2013 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2013 · median 2008 among the 4,208 with a school on file
- Record last updated2026 · 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).
30 internal medicine physician records list a practice address in Lebanon
They are 30 of the 1,756 NPPES records with a practice address in Lebanon, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Lebanon → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tamara Adams, M.D.Lebanon, PA 170421285626739
- Navneet Campbell, MDLebanon, PA 170421902887938
- Rachel Causak, MDLebanon, PA 170421407947195
- Bradley Davidson, M.D.Lebanon, PA 170421184715344
- Brian Fosnocht, M.D.Lebanon, PA 170421386652923
- John Halcovage, DOLebanon, PA 170421174582266
- Anne Hayes, M.D.Lebanon, PA 170421639161185
- Mark Jacobson, DOLebanon, PA 170421407879554
Common questions
What is Michael Arthur Santos, M.D.'s NPI number?
Michael Arthur Santos, M.D.'s National Provider Identifier (NPI) is 1316280639, issued on Apr 4, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Michael Arthur Santos, M.D. located?
The NPPES record lists a practice address at 252 S 4TH St, Lebanon, PA, 17042. Phone: (717) 270-4876. Providers update this record themselves, so call before visiting.
How can I verify Michael Arthur Santos, M.D.'s license?
NPPES lists Pennsylvania license number MD457759, 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 Michael Arthur Santos, M.D. prescribe under Medicare Part D?
In 2024, Michael Arthur Santos, M.D. had 102 Medicare Part D claims for 48 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.