Christina Hammaker, P.A.
Physician Assistant · Washington, DC
Christina Hammaker, P.A. is a physician assistant with a practice address in Washington, District of Columbia, and NPI 1740432459, issued on Oct 14, 2008. Check the license (District of Columbia PA030558, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christina Hammaker
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA030558 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1327 18TH St NW, Washington, DC 20036
- Phone
- (202) 785-2400
- Enumerated
- Oct 14, 2008
- Record last updated
- Dec 4, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (202) 452-1853
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 558 in District of Columbia → Look up another NPI →
Also registered at 1327 18TH St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christina Hammaker 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 PA030558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average physician assistant in 2024
161 Medicare Part D claims for 21 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 34 claims were for opioids.
Most prescribed
- Oxycodone Hcl25 claims
- Amlodipine Besylate11 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.
Industry payments in 2024: $752.60
36 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 64,719 providers of this specialty with any payment received $841.65 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.
Christina Hammaker among 558 physician assistant records in District of Columbia
Christina Hammaker, P.A. 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 2008, is newer than 20% of them.
- NPI issued2008 · 20% of these records are older, 77% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 47% of these records are
- Record last updated2017 · 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
- Barbara Clorey, PA-CWashington, DC 200361073607669
- Connie Dent, PAWashington, DC 200361104973965
- Lauren George, PA-CWashington, DC 200361144554163
- Jessica Husty, PACWashington, DC 200361295923746
- Hanna Kifle, PA-CWashington, DC 200361780822379
- Carol Mack, P.A.-CWashington, DC 200361235207366
- Augusta Malpass, PA-CWashington, DC 200361366631293
- Leanne Marovick, PA-CWashington, DC 200361407183627
Common questions
What is Christina Hammaker, P.A.'s NPI number?
Christina Hammaker, P.A.'s National Provider Identifier (NPI) is 1740432459, issued on Oct 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Christina Hammaker, P.A. located?
The NPPES record lists a practice address at 1327 18TH St NW, Washington, DC, 20036. Phone: (202) 785-2400. Providers update this record themselves, so call before visiting.
How can I verify Christina Hammaker, P.A.'s license?
NPPES lists District of Columbia license number PA030558, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Christina Hammaker, P.A. prescribe under Medicare Part D?
In 2024, Christina Hammaker, P.A. had 161 Medicare Part D claims for 21 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
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.