Sara Ann Keck, MD
Medical Oncology Physician · Santa Rosa, CA
Sara Ann Keck, MD is a medical oncology physician with a practice address in Santa Rosa, California, and NPI 1770743312, issued on Jun 16, 2008. Check the license (California A104085, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sara Ann Keck
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A104085 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3555 Round Barn Cir, Santa Rosa, CA 95403
- Phone
- (707) 528-1050
- Enumerated
- Jun 16, 2008
- Record last updated
- Nov 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 525-3874
- Medicare enrollment
- Enrolled (PECOS I20121106000544); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 3555 Round Barn Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leena Agrawal, PHARMDOncology Pharmacist1174221634
- Ian Anderson, M.D.Hematology & Oncology Physician1518055573
- Lorraine Champion, MDSpecialist1932190949
- Parnian EslamiPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1477200111
- Justin Grenet, MDHematology & Oncology Physician1770102915
- Ralph Hanahan, M.D.Therapeutic Radiology Physician1801986641
Verify Sara Ann Keck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A104085Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average medical oncology physician in 2024
681 Medicare Part D claims for 166 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 15 claims were for opioids.
Most prescribed
- Anastrozole165 claims
- Letrozole101 claims
- Exemestane37 claims
- Gabapentin34 claims
- Alendronate Sodium27 claims
- Wegovy27 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: $47.16
2 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 3,343 providers of this specialty with any payment received $11,773.47 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
- Providence Medical FoundationPetaluma, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara Ann Keck among 447 medical oncology physician records in California
Sara Ann Keck, MD is one of 447 medical oncology physician records with a practice address in California. 82% 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 56% of them.
- NPI issued2008 · 56% of these records are older, 38% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2006 · median 2004 among the 312 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 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in Santa Rosa → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Wes Lee, M.D.Santa Rosa, CA 954031376633149
- Fan Zhang, MDSanta Rosa, CA 954031619051695
- Ming Zhou, MDModesto, CA 953551619933850
- Parminder Sidhu, MDMerced, CA 953401164663878
- Hely Shah, M.D.Ukiah, CA 954821912770660
- Christopher Williams, M.D.Eureka, CA 955011588899363
- Luko Laptalo, M.D.Carmichael, CA 956081114958501
- Haroon Rehman, MDCarmichael, CA 956081952784852
Common questions
What is Sara Ann Keck, MD's NPI number?
Sara Ann Keck, MD's National Provider Identifier (NPI) is 1770743312, issued on Jun 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sara Ann Keck, MD located?
The NPPES record lists a practice address at 3555 Round Barn Cir, Santa Rosa, CA, 95403. Phone: (707) 528-1050. Providers update this record themselves, so call before visiting.
How can I verify Sara Ann Keck, MD's license?
NPPES lists California license number A104085, 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 Sara Ann Keck, MD prescribe under Medicare Part D?
In 2024, Sara Ann Keck, MD had 681 Medicare Part D claims for 166 beneficiaries; the average among medical oncology physician prescribers was 703. 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.