Katherine Sue Bates, MD
Obstetrics & Gynecology Physician · Sacramento, CA
Katherine Sue Bates, MD is an obstetrics & gynecology physician with a practice address in Sacramento, California, and NPI 1669931887, issued on Mar 18, 2019. Check the license (California A180138, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Sue Bates
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A180138 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1650 Response RD, Sacramento, CA 95815
- Phone
- (916) 973-5000
- Enumerated
- Mar 18, 2019
- Record last updated
- Sep 20, 2023
- Medicare enrollment
- Enrolled (PECOS I20230823001560); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 1650 Response RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Olivia Bocanegra, M.D.Pediatrics Physician1093973752
Verify Katherine Sue Bates in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A180138Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
91 Medicare Part D claims for 49 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Yuvafem23 claims
- Estradiol22 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 IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Sue Bates among 5,088 obstetrics & gynecology physician records in California
Katherine Sue Bates, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2019 · median 2004 among the 2,700 with a school on file
- Record last updated2023 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Sacramento → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Lindy Hong, DOSacramento, CA 958151245598937
- Shannon Kathol, M.D.Sacramento, CA 958151548237498
- Kristine Kjellsson, M.D.Sacramento, CA 958151326451436
- Joelle Morrow, M.D.Sacramento, CA 958151619021532
- Gabrielle Rivera, MDSacramento, CA 958151013545839
- Jeffrey Ruderman, M.D.Sacramento, CA 958151497757686
- Britta Stjern, MDSacramento, CA 958151508325770
- Tyrone Adams, M.D.Sacramento, CA 958141265637896
Common questions
What is Katherine Sue Bates, MD's NPI number?
Katherine Sue Bates, MD's National Provider Identifier (NPI) is 1669931887, issued on Mar 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Sue Bates, MD located?
The NPPES record lists a practice address at 1650 Response RD, Sacramento, CA, 95815. Phone: (916) 973-5000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Sue Bates, MD's license?
NPPES lists California license number A180138, 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 Katherine Sue Bates, MD prescribe under Medicare Part D?
In 2024, Katherine Sue Bates, MD had 91 Medicare Part D claims for 49 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.