Matthias Sommer, M.D
Psychiatry Physician · Philadelphia, PA
Matthias Sommer, M.D is a psychiatry physician with a practice address in Philadelphia, Pennsylvania, and NPI 1295046241, issued on Jun 24, 2010. Check the license (Pennsylvania MD454153, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Matthias Sommer
- Credential
- M.D
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD454153 PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 E Lehigh Ave, Philadelphia, PA 19125
- Phone
- (215) 707-8496
- Enumerated
- Jun 24, 2010
- Record last updated
- Jan 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20150811005875); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 100 E Lehigh Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthias Sommer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD454153Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average psychiatry physician in 2024
185 Medicare Part D claims for 47 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Risperidone17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Temple Faculty Practice Plan IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthias Sommer among 2,662 psychiatry physician records in Pennsylvania
Matthias Sommer, M.D is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1999 · median 2003 among the 1,186 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
727 psychiatry physician records list a practice address in Philadelphia
They are 727 of the 42,849 NPPES records with a practice address in Philadelphia, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Philadelphia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Marla Deibler, PSY.DPhiladelphia, PA 191251801803457
- William Dubin, MDPhiladelphia, PA 191251689662660
- Gregg Gorton, M.D.Philadelphia, PA 191251760596274
- John Harding, MDPhiladelphia, PA 191251487642484
- Jonathan Kersun, M.D.Philadelphia, PA 191251285797027
- Pietro Miazzo, MDPhiladelphia, PA 191251649268640
- Natalia Ortiz, MDPhiladelphia, PA 191251114914959
- Madhulatha Paul, MDPhiladelphia, PA 191251003804097
Common questions
What is Matthias Sommer, M.D's NPI number?
Matthias Sommer, M.D's National Provider Identifier (NPI) is 1295046241, issued on Jun 24, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Matthias Sommer, M.D located?
The NPPES record lists a practice address at 100 E Lehigh Ave, Philadelphia, PA, 19125. Phone: (215) 707-8496. Providers update this record themselves, so call before visiting.
How can I verify Matthias Sommer, M.D's license?
NPPES lists Pennsylvania license number MD454153, 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 Matthias Sommer, M.D prescribe under Medicare Part D?
In 2024, Matthias Sommer, M.D had 185 Medicare Part D claims for 47 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Matthias Sommer, M.D's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.