Janine E. Senior, MD
Obstetrics & Gynecology Physician · Walnut Creek, CA
Janine E. Senior, MD is an obstetrics & gynecology physician with a practice address in Walnut Creek, California, and NPI 1154321503, issued on Jul 28, 2005. Check the license (California G74576, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Janine E. Senior
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G74576 CA
Self-reported in NPPES; status is on the state search - Practice location
- 112 LA Casa Via Ste 300, Walnut Creek, CA 94598
- Phone
- (925) 239-0012
- Enumerated
- Jul 28, 2005
- Record last updated
- Feb 27, 2025
- Fax
- (925) 239-0011
- Medicare enrollment
- Enrolled (PECOS I20070529000504); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 112 LA Casa Via Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Abrahamson, CNM, NP, MSNAdvanced Practice Midwife1225695869
- Mary Amendola, RNHigh-Risk Obstetric Registered Nurse1659293793
- Danielle Anderson, CNMAdvanced Practice Midwife1770427247
- Rusna Jhita, MDObstetrics & Gynecology Physician1053805200
- Emma JudinObstetrics & Gynecology Physician1497635346
- Savannah Kingsmith, CNMAdvanced Practice Midwife1275262131
Verify Janine E. Senior in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74576Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
450 Medicare Part D claims for 151 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Estradiol136 claims
- Progesterone47 claims
- Estradiol (Twice Weekly)38 claims
- Medroxyprogesterone Acetate26 claims
- Premarin19 claims
- Nitrofurantoin Mono-Macro15 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): 93.9 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).
Industry payments in 2024: $462.94
18 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Bass Medical GroupAlamo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janine E. Senior among 5,088 obstetrics & gynecology physician records in California
Janine E. Senior, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1988 · median 2004 among the 2,700 with a school on file
- Record last updated2025 · 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).
56 obstetrics & gynecology physician records list a practice address in Walnut Creek
They are 56 of the 6,170 NPPES records with a practice address in Walnut Creek, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Walnut Creek → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Rosemary DelgadoWalnut Creek, CA 945981235140500
- Anh Do, MDWalnut Creek, CA 945981548362122
- Tanees Edraki, MDWalnut Creek, CA 945981881644482
- Yaron Friedman, M.D.Walnut Creek, CA 945981730104704
- Nadine Hanna, M.D.Walnut Creek, CA 945981043244007
- Luman Hughes, M.D.Walnut Creek, CA 945981124040274
- Sari Kasper, D.O.Walnut Creek, CA 945981194739110
- Gerald Katz, M.D.Walnut Creek, CA 945981306868450
Common questions
What is Janine E. Senior, MD's NPI number?
Janine E. Senior, MD's National Provider Identifier (NPI) is 1154321503, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Janine E. Senior, MD located?
The NPPES record lists a practice address at 112 LA Casa Via Ste 300, Walnut Creek, CA, 94598. Phone: (925) 239-0012. Providers update this record themselves, so call before visiting.
How can I verify Janine E. Senior, MD's license?
NPPES lists California license number G74576, 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 Janine E. Senior, MD prescribe under Medicare Part D?
In 2024, Janine E. Senior, MD had 450 Medicare Part D claims for 151 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Janine E. Senior, MD's MIPS final score?
The 2023 MIPS final score is 93.9 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.