Ronald Edward Greger, M.D.
Adult Medicine Physician · Gaithersburg, MD
Ronald Edward Greger, M.D. is an adult medicine physician with a practice address in Gaithersburg, Maryland, and NPI 1922093723, issued on Sep 18, 2005. Check the license (Maryland D0014660, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Ronald Edward Greger
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- D0014660 MD
Self-reported in NPPES; status is on the state search - Practice location
- 201 Russell Ave, Gaithersburg, MD 20877
- Phone
- (301) 216-4157
- Enumerated
- Sep 18, 2005
- Record last updated
- Oct 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (301) 987-6297
- Medicaid ID
- 410467600 MD
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 59 in Maryland → Look up another NPI →
Also registered at 201 Russell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ronald Edward Greger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0014660Check 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 adult medicine physician in 2024
39 Medicare Part D claims for 37 beneficiaries, against an average of 3,002 among the 1,307 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.
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).
Ronald Edward Greger among 59 adult medicine physician records in Maryland
Ronald Edward Greger, M.D. is one of 59 adult medicine 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2011 · 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 207QA0505X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in Maryland
There are 59 adult medicine physician records in Maryland.
All 59 in Maryland → Every provider in Gaithersburg → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Mikhail Gendel, M.D.Gaithersburg, MD 208771235178344
- Elsie KamaraGermantown, MD 208761982437554
- Laban Tsuma, MDKensington, MD 208951902245798
- Lendicita Madden, MDSilver Spring, MD 209011407066723
- Deepa Balasubramaniam, M.DSilver Spring, MD 209021396928172
- Xavier Kee, MDRockville, MD 208521437446960
- Chelsea PainterSilver Spring, MD 209021831862168
- Asha Vali, M.D.Silver Spring, MD 209021629134291
Common questions
What is Ronald Edward Greger, M.D.'s NPI number?
Ronald Edward Greger, M.D.'s National Provider Identifier (NPI) is 1922093723, issued on Sep 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Edward Greger, M.D. located?
The NPPES record lists a practice address at 201 Russell Ave, Gaithersburg, MD, 20877. Phone: (301) 216-4157. Providers update this record themselves, so call before visiting.
How can I verify Ronald Edward Greger, M.D.'s license?
NPPES lists Maryland license number D0014660, 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 Ronald Edward Greger, M.D. prescribe under Medicare Part D?
In 2024, Ronald Edward Greger, M.D. had 39 Medicare Part D claims for 37 beneficiaries; the average among adult medicine physician prescribers was 3,002. Part D covers Medicare prescriptions only.
What is Ronald Edward Greger, M.D.'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.