Michael Simon Dahan
Physician Assistant · Washington, DC
Michael Simon Dahan is a physician assistant with a practice address in Washington, District of Columbia, and NPI 1083288435, issued on May 19, 2021. Check the license (District of Columbia CA210001189, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Simon Dahan
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- CA210001189 DC
Self-reported in NPPES; status is on the state search - Practice location
- 110 Irving St NW, Washington, DC 20010
- Phone
- (202) 877-7000
- Enumerated
- May 19, 2021
- Record last updated
- Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211108000822); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 558 in District of Columbia → Look up another NPI →
Also registered at 110 Irving St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Simon Dahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
Search for license CA210001189Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average physician assistant in 2024
152 Medicare Part D claims for 40 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin13 claims
- Benztropine Mesylate12 claims
- Hydrochlorothiazide12 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
- 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).
Michael Simon Dahan among 558 physician assistant records in District of Columbia
Michael Simon Dahan is one of 558 physician assistant records with a practice address in District of Columbia. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 66% of them.
- NPI issued2021 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated2021 · median 2019 among the 262 with a school on file
- Record last updated2021 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X 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).
552 physician assistant records list a practice address in Washington
They are 552 of the 45,857 NPPES records with a practice address in Washington, and 558 physician assistant records in District of Columbia.
All 558 in District of Columbia → Every provider in Washington → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Martha Aberra, PA-CWashington, DC 200101639205529
- Carl Bailey, PAWashington, DC 200101205996584
- Donald Edwards, PAWashington, DC 200101467443754
- Kelli Karacki, PA-CWashington, DC 200101043420649
- Robert Molyneaux, PAWashington, DC 200101174514442
- Avril Nimblett, PA-CWashington, DC 200101194810564
- Sheryl Orwig, PAWashington, DC 200101427049790
- Kristine Pace, PAWashington, DC 200101699766972
Common questions
What is Michael Simon Dahan's NPI number?
Michael Simon Dahan's National Provider Identifier (NPI) is 1083288435, issued on May 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Michael Simon Dahan located?
The NPPES record lists a practice address at 110 Irving St NW, Washington, DC, 20010. Phone: (202) 877-7000. Providers update this record themselves, so call before visiting.
How can I verify Michael Simon Dahan's license?
NPPES lists District of Columbia license number CA210001189, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Simon Dahan prescribe under Medicare Part D?
In 2024, Michael Simon Dahan had 152 Medicare Part D claims for 40 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Michael Simon Dahan'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.