Katherine Mueller Gillogley, M.D.
Obstetrics & Gynecology Physician · Sacramento, CA
Katherine Mueller Gillogley, M.D. is an obstetrics & gynecology physician with a practice address in Sacramento, California, and NPI 1396759742, issued on Jul 28, 2006. Check the license (California G56083, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Mueller Gillogley
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G56083 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8120 Timberlake Way, Sacramento, CA 95823
- Phone
- (916) 681-6000
- Enumerated
- Jul 28, 2006
- Record last updated
- Feb 10, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (916) 681-6001
- Medicaid ID
- 00G560830 CA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 8120 Timberlake Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Arieas, ANPAdult Health Nurse Practitioner1679801955
- Shivani Bhutani, MDGeriatric Medicine (Internal Medicine) Physician1700062270
- Natalie Bulock, DOObstetrics & Gynecology Physician1114360245
- Jennifer Chang, O.D.Optometrist1689094252
- Hui Min Cheong, MDObstetrics & Gynecology Physician1285663930
- Cherie Cooper, NPNurse Practitioner1023341898
Verify Katherine Mueller Gillogley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56083Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
187 Medicare Part D claims for 74 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Estradiol61 claims
- Progesterone16 claims
- Valacyclovir12 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.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Katherine Mueller Gillogley among 5,088 obstetrics & gynecology physician records in California
Katherine Mueller Gillogley, M.D. 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2012 · 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
- Nathan Allen, M.D.Sacramento, CA 958231598739161
- Cecelia Berg, MDSacramento, CA 958231063590784
- Melissa Bergstrom, MDSacramento, CA 958231225116718
- James Brode, M.D.Sacramento, CA 958231457333429
- Hui Min Cheong, MDSacramento, CA 958231285663930
- Carol Conrad-Forrest, MDSacramento, CA 958231235195967
- Fouad Darwish, MD OB GYNSacramento, CA 958231285698902
- Anna Macias, MDSacramento, CA 958231447338181
Common questions
What is Katherine Mueller Gillogley, M.D.'s NPI number?
Katherine Mueller Gillogley, M.D.'s National Provider Identifier (NPI) is 1396759742, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Mueller Gillogley, M.D. located?
The NPPES record lists a practice address at 8120 Timberlake Way, Sacramento, CA, 95823. Phone: (916) 681-6000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Mueller Gillogley, M.D.'s license?
NPPES lists California license number G56083, 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 Mueller Gillogley, M.D. prescribe under Medicare Part D?
In 2024, Katherine Mueller Gillogley, M.D. had 187 Medicare Part D claims for 74 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Katherine Mueller Gillogley, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.