Alan H. Ost, MD
Diagnostic Radiology Physician · Washington, DC
Alan H. Ost, MD is a diagnostic radiology physician with a practice address in Washington, District of Columbia, and NPI 1144210758, issued on Oct 25, 2005. Check the license (District of Columbia MD20645, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Alan H. Ost
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- MD20645 DC
Self-reported in NPPES; status is on the state search - Practice location
- 110 Irving St NW, Washington, DC 20010
- Phone
- (202) 877-6429
- Enumerated
- Oct 25, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (202) 877-8626
- Medicare enrollment
- Enrolled (PECOS I20070131000688); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 172 in District of Columbia → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alan H. Ost in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD20645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 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
- Medstar Medical Group II LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alan H. Ost among 172 diagnostic radiology physician records in District of Columbia
Alan H. Ost, MD is one of 172 diagnostic radiology physician records with a practice address in District of Columbia. 78% 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, 70% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1987 · median 2003 among the 136 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in District of Columbia
There are 172 diagnostic radiology physician records in District of Columbia.
All 172 in District of Columbia → Every provider in Washington → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- David Buck, MDWashington, DC 200101639169220
- Anna Choi, MDWashington, DC 200101891785481
- Sandra Figel, MDWashington, DC 200101366429417
- David Grant, MDWashington, DC 200101972593564
- Namik Haveric, MDWashington, DC 200101043200637
- Lynn Huang, MDWashington, DC 200101558351155
- James Jelinek, MDWashington, DC 200101538159132
- Kinh-Phuc Kieu, MDWashington, DC 200101619967213
Common questions
What is Alan H. Ost, MD's NPI number?
Alan H. Ost, MD's National Provider Identifier (NPI) is 1144210758, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Alan H. Ost, MD located?
The NPPES record lists a practice address at 110 Irving St NW, Washington, DC, 20010. Phone: (202) 877-6429. Providers update this record themselves, so call before visiting.
How can I verify Alan H. Ost, MD's license?
NPPES lists District of Columbia license number MD20645, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Alan H. Ost, MD's MIPS final score?
The 2023 MIPS final score is 77.5 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.