Matthew Parker, D.O.
Psychiatry Physician · Philadelphia, PA
Matthew Parker, D.O. is a psychiatry physician with a practice address in Philadelphia, Pennsylvania, and NPI 1649620089, issued on Jun 16, 2016. Check the license (Pennsylvania OT017334, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Matthew Parker
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- OT017334 PA
Self-reported in NPPES; status is on the state search - Practice location
- 2040 Market St Apt 1121, Philadelphia, PA 19103
- Phone
- (916) 709-0825
- Enumerated
- Jun 16, 2016
- Record last updated
- Jun 16, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230925003832); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Verify Matthew Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OT017334Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average psychiatry physician in 2024
109 Medicare Part D claims for 23 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Prazosin Hcl14 claims
- Quetiapine Fumarate13 claims
- Mirtazapine11 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
- Bhc Fairfax Hospital IncKirkland, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Parker among 2,662 psychiatry physician records in Pennsylvania
Matthew Parker, D.O. 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 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2016 · median 2003 among the 1,186 with a school on file
- Record last updated2016 · 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
- Jeffrey Bedrick, M.D.Philadelphia, PA 191031174573869
- Deborah Bernstein, MDPhiladelphia, PA 191031639266653
- Harry Doyle, M.D.Philadelphia, PA 191031831195700
- David Fink, MDPhiladelphia, PA 191031386672111
- Gail Greenspan, M.D.Phila, PA 191031093760563
- Cordula Holzer, MDPhiladelphia, PA 191031073534764
- David Kalkstein, MD, PHDPhiladelphia, PA 191031215923255
- Eric Lager, M.D.Philadelphia, PA 191031023170743
Common questions
What is Matthew Parker, D.O.'s NPI number?
Matthew Parker, D.O.'s National Provider Identifier (NPI) is 1649620089, issued on Jun 16, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Parker, D.O. located?
The NPPES record lists a practice address at 2040 Market St Apt 1121, Philadelphia, PA, 19103. Phone: (916) 709-0825. Providers update this record themselves, so call before visiting.
How can I verify Matthew Parker, D.O.'s license?
NPPES lists Pennsylvania license number OT017334, 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 Matthew Parker, D.O. prescribe under Medicare Part D?
In 2024, Matthew Parker, D.O. had 109 Medicare Part D claims for 23 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.