Holly J. Christoferson, MD
Family Medicine Physician · Seattle, WA
Holly J. Christoferson, MD is a family medicine physician with a practice address in Seattle, Washington, and NPI 1639280191, issued on Aug 31, 2006. Check the license (Washington MD00045452, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Holly J. Christoferson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00045452 WA
Self-reported in NPPES; status is on the state search - Practice location
- 800 5TH Ave Ste 600, Seattle, WA 98104
- Phone
- (206) 215-3354
- Enumerated
- Aug 31, 2006
- Record last updated
- Apr 17, 2025
- Medicaid ID
- 1639280191 WA
- Medicare enrollment
- Enrolled (PECOS I20061128000464); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2003
- Entity
- Type 1 · individual
Also registered at 800 5TH Ave Ste 600
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gagan Khalsa, MDPediatrics Physician1164448338
- Gwen Muthanna, ARNPFamily Nurse Practitioner1316236706
- Meghan Nishinaga, MDPediatrics Physician1790009132
Verify Holly J. Christoferson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00045452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average family medicine physician in 2024
197 Medicare Part D claims for 86 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Gabapentin27 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.
Bills Medicare through one group practice
- Iora Health Washington Physicians PCShoreline, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
871 family medicine physician records list a practice address in Seattle
They are 871 of the 41,956 NPPES records with a practice address in Seattle, and 5,534 family medicine physician records in Washington.
All 871 in Seattle → All 5,534 in Washington → Every provider in Seattle →
Other family medicine physician records in Washington
- Shawn Aaron, MDLongview, WA1578560710
- John Abano, M.D.Shoreline, WA1891929857
- Sarah Abbot, DOKirkland, WA1033555180
- Arthur Abbott, M.D.Seattle, WA1255488847
- Dale Abbott, MDBurlington, WA1760453534
- Michael Abbott, MDEast Wenatchee, WA1336179928
- Richard Abbott, M.D.Mount Vernon, WA1689835803
- Charlee Abboud, DOTacoma, WA1174152169
- Suad AbdelazizSeattle, WA1306423421
- Joonis Abdulkhader, M.D.Seattle, WA1518154335
Common questions
What is Holly J. Christoferson, MD's NPI number?
Holly J. Christoferson, MD's National Provider Identifier (NPI) is 1639280191, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Holly J. Christoferson, MD located?
The NPPES record lists a practice address at 800 5TH Ave Ste 600, Seattle, WA, 98104. Phone: (206) 215-3354. Providers update this record themselves, so call before visiting.
How can I verify Holly J. Christoferson, MD's license?
NPPES lists Washington license number MD00045452, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Holly J. Christoferson, MD prescribe under Medicare Part D?
In 2024, Holly J. Christoferson, MD had 197 Medicare Part D claims for 86 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.