Brendan M. Greer, MD
Psychiatry Physician · Philadelphia, PA
Brendan M. Greer, MD is a psychiatry physician with a practice address in Philadelphia, Pennsylvania, and NPI 1831105535, issued on Aug 1, 2006. Check the license (Pennsylvania MD053567L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Brendan M. Greer
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD053567L PA
Self-reported in NPPES; status is on the state search - Practice location
- 4025 Chestnut St, Philadelphia, PA 19104
- Phone
- (215) 382-6680
- Enumerated
- Aug 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 4025 Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole Cleckley, LMFTMarriage & Family Therapist1164633491
- Sara Corse, PH.D.Clinical Psychologist1023225950
- Kenneth Covelman, PH.D.Clinical Psychologist1710180716
- Rita Demaria, PH.D., M.S.Social Worker1437363652
- Christopher Fariello, PHD, MA, LMFTMarriage & Family Therapist1518173814
- Heather Greene, MS, CCC-SLPSpeech-Language Pathologist1265811467
Verify Brendan M. Greer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD053567LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average psychiatry physician in 2024
459 Medicare Part D claims for 34 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Duloxetine Hcl82 claims
- Bupropion Xl44 claims
- Methylphenidate Hcl38 claims
- Lorazepam37 claims
- Lamotrigine26 claims
- Aripiprazole24 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.
Brendan M. Greer among 2,662 psychiatry physician records in Pennsylvania
Brendan M. Greer, MD 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2007 · 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
- Steven Arnold, MDPhiladelphia, PA 191041437186327
- James Cornish, MDPhiladelphia, PA 191041417984337
- Charles Dackis, MDPhiladelphia, PA 191041922034628
- Sarah Demichele, MDPhiladelphia, PA 191041669408449
- Benoit Dube, MDPhiladelphia, PA 191041659307338
- Steven Huege, MDPhiladelphia, PA 191041598716367
- Deborah Kim, MDPhiladelphia, PA 191041477580389
- Avram MackPhiladelphia, PA 191041811972573
Common questions
What is Brendan M. Greer, MD's NPI number?
Brendan M. Greer, MD's National Provider Identifier (NPI) is 1831105535, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brendan M. Greer, MD located?
The NPPES record lists a practice address at 4025 Chestnut St, Philadelphia, PA, 19104. Phone: (215) 382-6680. Providers update this record themselves, so call before visiting.
How can I verify Brendan M. Greer, MD's license?
NPPES lists Pennsylvania license number MD053567L, 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 Brendan M. Greer, MD prescribe under Medicare Part D?
In 2024, Brendan M. Greer, MD had 459 Medicare Part D claims for 34 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.