Michael J. Larock, MD
Hospitalist Physician · Bryn Mawr, PA
Michael J. Larock, MD is a hospitalist physician with a practice address in Bryn Mawr, Pennsylvania, and NPI 1639138829, issued on Mar 17, 2006. Check the license (Pennsylvania MD051324L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Michael J. Larock
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD051324L PA
Self-reported in NPPES; status is on the state search - Practice location
- 130 S Bryn Mawr Ave Ste H321, Bryn Mawr, PA 19010
- Phone
- (484) 337-4097
- Enumerated
- Mar 17, 2006
- Record last updated
- Jun 18, 2024
- Fax
- (484) 337-4082
- Medicare enrollment
- Enrolled (PECOS I20070329000022); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 1991
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,424 in Pennsylvania → Look up another NPI →
Also registered at 130 S Bryn Mawr Ave Ste H321
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael J. Larock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD051324LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average hospitalist physician in 2024
114 Medicare Part D claims for 59 beneficiaries, against an average of 521 among the 21,613 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 2 group practices
- Lehigh Valley Physician GroupAllentown, PA
- Main Line HealthcareWynewood, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Larock among 1,424 hospitalist physician records in Pennsylvania
Michael J. Larock, MD is one of 1,424 hospitalist physician records with a practice address in Pennsylvania. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 83% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated1991 · median 2011 among the 1,236 with a school on file
- Record last updated2024 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 hospitalist physician records list a practice address in Bryn Mawr
They are 43 of the 1,496 NPPES records with a practice address in Bryn Mawr, and 1,424 hospitalist physician records in Pennsylvania.
All 1,424 in Pennsylvania → Every provider in Bryn Mawr → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Raymond Attolino, DOBryn Mawr, PA 190101336128917
- Rosemary Cook, M.D.Bryn Mawr, PA 190101285635631
- Sharon Davidheiser, MDBryn Mawr, PA 190101659322303
- Vaijayanthi Deevakonda, MDBryn Mawr, PA 190101659345205
- Deborah Gondek, D.O.Bryn Mawr, PA 190101346234838
- Salini Johny, M.D.Bryn Mawr, PA 190101518050525
- Nuzhat Khan, MDBryn Mawr, PA 190101184698367
- Sreedhar Penagaluru, MDBryn Mawr, PA 190101457326191
Common questions
What is Michael J. Larock, MD's NPI number?
Michael J. Larock, MD's National Provider Identifier (NPI) is 1639138829, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Larock, MD located?
The NPPES record lists a practice address at 130 S Bryn Mawr Ave Ste H321, Bryn Mawr, PA, 19010. Phone: (484) 337-4097. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Larock, MD's license?
NPPES lists Pennsylvania license number MD051324L, 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 J. Larock, MD prescribe under Medicare Part D?
In 2024, Michael J. Larock, MD had 114 Medicare Part D claims for 59 beneficiaries; the average among hospitalist physician prescribers was 521. 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.