Diana Malouf Greerty
Internal Medicine Physician · Baltimore, MD
Diana Malouf Greerty is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1336524230, issued on Jul 21, 2015. Check the license (Maryland D0084355, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Diana Malouf Greerty
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0084355 MD
Self-reported in NPPES; status is on the state search - Practice location
- 5601 Loch Raven Blvd Dept OF, Baltimore, MD 21239
- Phone
- (443) 444-8000
- Enumerated
- Jul 21, 2015
- Record last updated
- May 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230920001964); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Verify Diana Malouf Greerty in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0084355Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
231 Medicare Part D claims for 97 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide15 claims
- Cefpodoxime Proxetil12 claims
- Doxycycline Monohydrate11 claims
- Metoprolol Tartrate11 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): 80.2 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
- Permanente Medical Group IncVacaville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Malouf Greerty among 3,904 internal medicine physician records in Maryland
Diana Malouf Greerty is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 77% of them.
- NPI issued2015 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2003 among the 2,445 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,278 internal medicine physician records list a practice address in Baltimore
They are 1,278 of the 35,183 NPPES records with a practice address in Baltimore, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Baltimore → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Deepthi Bommadevara, M.D; M.P.HBaltimore, MD 212391821259474
- Dana Frank, M.D.Baltimore, MD 212391467453555
- Herbert Friedman, M.D.Baltimore, MD 212391457329187
- Charles Hoesch, M.D.Baltimore, MD 212391104895903
- Satish Kabra, M.B., B.S.Baltimore, MD 212391588826192
- Mohammed Khan, M.D.Baltimore, MD 212391457329005
- Olga Lurye, M.D.Baltimore, MD 212391619050259
- Edward Miller, M.D.Baltimore, MD 212391154317642
Common questions
What is Diana Malouf Greerty's NPI number?
Diana Malouf Greerty's National Provider Identifier (NPI) is 1336524230, issued on Jul 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Diana Malouf Greerty located?
The NPPES record lists a practice address at 5601 Loch Raven Blvd Dept OF, Baltimore, MD, 21239. Phone: (443) 444-8000. Providers update this record themselves, so call before visiting.
How can I verify Diana Malouf Greerty's license?
NPPES lists Maryland license number D0084355, 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 Diana Malouf Greerty prescribe under Medicare Part D?
In 2024, Diana Malouf Greerty had 231 Medicare Part D claims for 97 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Diana Malouf Greerty's MIPS final score?
The 2023 MIPS final score is 80.2 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.