Christopher D. Grimsrud, MD
Orthopaedic Trauma Physician · Oakland, CA
Christopher D. Grimsrud, MD is an orthopaedic trauma physician with a practice address in Oakland, California, and NPI 1447241609, issued on Nov 4, 2005. Check the license (California A79045, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher D. Grimsrud
- Credential
- MD
- Primary taxonomy
- Orthopaedic Trauma Physician 207XX0801X
- License number
- A79045 CA
Self-reported in NPPES; status is on the state search - Practice location
- 275 W Macarthur Blvd, Oakland, CA 94611
- Phone
- (510) 752-1000
- Enumerated
- Nov 4, 2005
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 546-1897
- Medicaid ID
- 00A790450 CA
- Medicare enrollment
- Enrolled (PECOS I20050728000773); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2000
- Entity
- Type 1 · individual
8 nearest orthopaedic trauma physician records → All 114 in California → Look up another NPI →
Also registered at 275 W Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher D. Grimsrud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79045Check 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 orthopaedic trauma physician in 2024
29 Medicare Part D claims for 17 beneficiaries, against an average of 151 among the 627 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher D. Grimsrud among 114 orthopaedic trauma physician records in California
Christopher D. Grimsrud, MD is one of 114 orthopaedic trauma physician records with a practice address in California. 89% 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, 91% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2000 · median 2009 among the 95 with a school on file
- Record last updated2021 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0801X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Trauma Physician providers in California
There are 114 orthopaedic trauma physician records in California.
All 114 in California → Every provider in Oakland → Orthopaedic Trauma Physician nationwide →
The 8 orthopaedic trauma physician records with the nearest ZIP codes
- Abhinav NalluriOakland, CA 946111801254537
- Adam Warren, MD, MPHOakland, CA 946091205164761
- Christopher Coufal, M.D.Walnut Creek, CA 945981467402859
- Eric Fulkerson, MDWalnut Creek, CA 945981568581429
- Virginia Lieu, MDCastro Valley, CA 945461063945962
- Steven Zourabian, D.O.Castro Valley, CA 945461578918926
- Julius Bishop, MDStanford, CA 943051548381999
- Michael Gardner, MDStanford, CA 943051710101555
Common questions
What is Christopher D. Grimsrud, MD's NPI number?
Christopher D. Grimsrud, MD's National Provider Identifier (NPI) is 1447241609, issued on Nov 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Christopher D. Grimsrud, MD located?
The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.
How can I verify Christopher D. Grimsrud, MD's license?
NPPES lists California license number A79045, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher D. Grimsrud, MD prescribe under Medicare Part D?
In 2024, Christopher D. Grimsrud, MD had 29 Medicare Part D claims for 17 beneficiaries; the average among orthopaedic trauma physician prescribers was 151. 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.