Diane Ossip, MD
Psychiatry Physician · Baltimore, MD
Diane Ossip, MD is a psychiatry physician with a practice address in Baltimore, Maryland, and NPI 1366687337, issued on Dec 4, 2008. Check the license (Maryland D45540, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Diane Ossip
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- D45540 MD
Self-reported in NPPES; status is on the state search - Practice location
- 630 W Fayette St, Baltimore, MD 21201
- Phone
- (443) 527-7379
- Enumerated
- Dec 4, 2008
- Record last updated
- Dec 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20231102001840); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
Also registered at 630 W Fayette St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Malika ClossonPsychologist1962411710
- Suzanne CoxClinical Social Worker1114936747
- Kimball CutlerClinical Social Worker1902815723
- Leaugelin DarbyClinical Social Worker1780693556
- Marsha GorthClinical Social Worker1710996368
- Nancy GuerreroClinical Social Worker1770592347
Verify Diane Ossip in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D45540Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average psychiatry physician in 2024
55 Medicare Part D claims for 17 beneficiaries, against an average of 1,000 among the 35,054 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
- Baltimore Crisis Response,incBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane Ossip among 1,451 psychiatry physician records in Maryland
Diane Ossip, MD is one of 1,451 psychiatry physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated1984 · median 2000 among the 525 with a school on file
- Record last updated2008 · 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
497 psychiatry physician records list a practice address in Baltimore
They are 497 of the 35,183 NPPES records with a practice address in Baltimore, and 1,451 psychiatry physician records in Maryland.
All 1,451 in Maryland → Every provider in Baltimore → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Curtis Adams, MDBaltimore, MD 212011033139258
- Theodora Balis, M.DBaltimore, MD 212011649291717
- Vickie Beck, R.N.Baltimore, MD 212011902827058
- Milton Buschman, MDBaltimore, MD 212011548242373
- John Butchart, MDBaltimore, MD 212011831150820
- Joseph Griffin, M.D.Baltimore, MD 212011811996366
- Brian Hastings, M.D.Baltimore, MD 212011346261328
- Bruce Kaup, M.D.Baltimore, MD 212011790747673
Common questions
What is Diane Ossip, MD's NPI number?
Diane Ossip, MD's National Provider Identifier (NPI) is 1366687337, issued on Dec 4, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Diane Ossip, MD located?
The NPPES record lists a practice address at 630 W Fayette St, Baltimore, MD, 21201. Phone: (443) 527-7379. Providers update this record themselves, so call before visiting.
How can I verify Diane Ossip, MD's license?
NPPES lists Maryland license number D45540, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diane Ossip, MD prescribe under Medicare Part D?
In 2024, Diane Ossip, MD had 55 Medicare Part D claims for 17 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.