Margaret Elizabeth Hamm, NP
Nurse Practitioner · Washington, DC
Margaret Elizabeth Hamm, NP is a nurse practitioner with a practice address in Washington, District of Columbia, and NPI 1174034375, issued on Oct 16, 2017. Check the license (District of Columbia RN1020006, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Elizabeth Hamm
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN1020006 DC
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Reservoir RD NW, Washington, DC 20007
- Phone
- (202) 444-5842
- Enumerated
- Oct 16, 2017
- Record last updated
- Oct 16, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180130002607); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3800 Reservoir RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Valiollah AbbassiPediatric Endocrinology Physician1073511275
- Ahmed AbdelfatahStudent in an Organized Health Care Education/Training Program1326918269
- Zeinab Abdi, M.D.Pediatrics Physician1861781437
Verify Margaret Elizabeth Hamm 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 RN1020006Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average nurse practitioner in 2024
127 Medicare Part D claims for 51 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Gabapentin35 claims
- Oxycodone Hcl18 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).
Industry payments in 2024: $35.14
2 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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).
Nurse Practitioner providers in District of Columbia
There are 244 nurse practitioner records in District of Columbia.
All 244 in District of Columbia → Every provider in Washington →
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Common questions
What is Margaret Elizabeth Hamm, NP's NPI number?
Margaret Elizabeth Hamm, NP's National Provider Identifier (NPI) is 1174034375, issued on Oct 16, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Elizabeth Hamm, NP located?
The NPPES record lists a practice address at 3800 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 444-5842. Providers update this record themselves, so call before visiting.
How can I verify Margaret Elizabeth Hamm, NP's license?
NPPES lists District of Columbia license number RN1020006, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Elizabeth Hamm, NP prescribe under Medicare Part D?
In 2024, Margaret Elizabeth Hamm, NP had 127 Medicare Part D claims for 51 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Margaret Elizabeth Hamm, NP'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.