Tammara Leone Davis, M.D.
Psychiatry Physician · Greenbelt, MD
Tammara Leone Davis, M.D. is a psychiatry physician with a practice address in Greenbelt, Maryland, and NPI 1386844603, issued on Jul 24, 2007. Check the license (Maryland D66338, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Tammara Leone Davis
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- D66338 MD
Self-reported in NPPES; status is on the state search - Practice location
- 7474 Greenway Center Dr, Greenbelt, MD 20770
- Phone
- (301) 982-3437
- Enumerated
- Jul 24, 2007
- Record last updated
- Feb 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20110705000117); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
Also registered at 7474 Greenway Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emilola Akeredolu, FNPFamily Nurse Practitioner1215417415
- Ashley ArchieSocial Worker1689913980
- Michael Bellucci, LGSWSocial Worker1881134278
- Andrea Boehm, LCSW-CClinical Social Worker1609997782
- Yashira Brooks, LCPCProfessional Counselor1528538022
- Linda Campbell, LCPCProfessional Counselor1871520627
Verify Tammara Leone Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D66338Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatry physician in 2024
13 Medicare Part D claims, 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 2 group practices
- Axis Healthcare GroupLeonardtown, MD
- Mccd FL Psychiatry Services PARockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammara Leone Davis among 1,451 psychiatry physician records in Maryland
Tammara Leone Davis, M.D. 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 38% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated2003 · median 2000 among the 525 with a school on file
- Record last updated2026 · 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).
Psychiatry Physician providers in Maryland
There are 1,451 psychiatry physician records in Maryland.
All 1,451 in Maryland → Every provider in Greenbelt → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jyoti Behl, M.D.Greenbelt, MD 207701255386157
- Patricia Caraballo Osorio, M.D.Greenbelt, MD 207701164762688
- Todd Christiansen, MDGreenbelt, MD 207701174542963
- Dennis Glick, MDGreenbelt, MD 207701114981651
- Joshua Sussal, MDGreenbelt, MD 207701922212174
- Kenneth Richter, D.O.Upper Marlboro, MD 207721174605067
- Shana Gage, M.D.Largo, MD 207741154589745
- Teddy Goetz, MD, MSLargo, MD 207741548847262
Common questions
What is Tammara Leone Davis, M.D.'s NPI number?
Tammara Leone Davis, M.D.'s National Provider Identifier (NPI) is 1386844603, issued on Jul 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tammara Leone Davis, M.D. located?
The NPPES record lists a practice address at 7474 Greenway Center Dr, Greenbelt, MD, 20770. Phone: (301) 982-3437. Providers update this record themselves, so call before visiting.
How can I verify Tammara Leone Davis, M.D.'s license?
NPPES lists Maryland license number D66338, 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 Tammara Leone Davis, M.D. prescribe under Medicare Part D?
In 2024, Tammara Leone Davis, M.D. had 13 Medicare Part D claims; 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.