Dr. Janine E. Senior, MD
- Medicare services, 2024
- 443
- Medicare patients, 2024
- 208
- Part D claims, 2024
- 450
- Hospital affiliations
- 2
- Industry payments
- $3,640
- Practice address
- 2637 Shadelands Drive, Walnut Creek, CA 94598
- Practice phone
- Call (925) 329-3710
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
BASS Imaging Center - Walnut Creek
Mammography / Breast Imaging Center · Walnut Creek, California
Find Dr. Senior's professional email, personal email and mobile number
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Dr. Janine E. Senior is an OB-GYN in Walnut Creek, California
Dr. Senior practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California.
Dr. Senior's NPI, 1154321503, was assigned on July 28, 2005. Dr. Senior graduated from University Of Cincinnati College Of Medicine in 1988. Dr. Senior holds California license G74576.
- NPI
- 1154321503NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385646512
- NPI enumeration date
- July 28, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 329-3710
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Janine E. Senior practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California
Dr. Senior's primary practice is BASS Imaging Center - Walnut Creek, at 2637 Shadelands Drive, Walnut Creek, CA 94598. The practice phone is (925) 329-3710.
- BASS Imaging Center - Walnut Creek2637 Shadelands Drive, Walnut Creek, CA 94598Phone(925) 329-3710
Source: Dmand AI Affiliation Data
Dr. Janine E. Senior is affiliated with 4 sites of care and 1 medical group
Dr. Senior's primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dr. Senior is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is BASS Medical Group. Dmand AI also links Dr. Senior to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Senior's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Janine E. Senior's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Senior practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| BASS Imaging Center - Walnut Creek | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Janine E. Senior is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Senior's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Senior is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Senior's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists menopause, ovarian cyst, pelvic prolapse, UTI and vaginal infection among the conditions Dr. Senior treats.
OB-GYNs near Dr. Senior
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Janine E. Senior billed Medicare for 443 services in 2024
CMS data shows 443 Medicare services from Dr. Senior across 8 procedure codes in 2024, for 208 Medicare patients. Medicare paid $21,368 for them. Every service was in an office.
Dr. Senior's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1712024: 171No change
- Lab and pathology
- 2023: 1152024: 13618%
- Office and hospital visits
- 2023: 1352024: 12011%
- Imaging
- 2023: 222024: 1627%
Dr. Senior compared with the California median for OB-GYNs, 2024
- Dr. Senior
- California median
- Medicare services
- 443vs 587.6 times
- Medicare patients
- 208vs 524.0 times
- Part D claims
- 306vs 358.7 times
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Senior's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Senior and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Janine E. Senior treated 208 Medicare patients in 2024, average age 73
CMS counts 208 Medicare patients who saw Dr. Senior in 2024. The largest group is 65 to 74, with 129 patients. 71% of them have high cholesterol, and 46% have high blood pressure. Their average risk score is 0.72, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Senior's median patient age at 56, with 98% women.
Dr. Senior's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Senior's Medicare patients, 2024
- High cholesterol71%
- High blood pressure46%
- Arthritis43%
- Osteoporosis32%
- Anxiety20%
- Asthma18%
- Cancer17%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Senior's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women98%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Janine E. Senior wrote 450 Medicare Part D claims in 2024
In 2024, Dr. Senior wrote 450 Medicare Part D claims for 151 patients. 79% of them were for generic drugs. CMS names the drug for 306 of them, across 8 drugs with 11 or more claims each, at $26,953 in total drug cost. In 2023, CMS named 402 claims across 13 drugs.
Dr. Senior's Part D claims by kind of drug, 2024
- Generic357 claims79%
- Brand-name93 claims21%
Dr. Senior's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Senior's Part D claims, 2024
- Antibiotics6%26 of 450 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4022024: 30624%
Drugs named by CMS: 8 in 2024, 13 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Janine E. Senior takes part in Medicare
Dr. Senior accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Janine E. Senior received $3,640 in industry payments from 2016 to 2025
CMS Open Payments shows 182 general payments to Dr. Senior from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 91% of the total. Pfizer Inc. paid the most, $587.
General payments to Dr. Senior by program year, 2016 to 2025
General payments to Dr. Senior by kind, 2016 to 2025
- Food and beverage$3,32891%
- Education$3129%
Companies that paid Dr. Senior the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Janine E. Senior graduated from University Of Cincinnati College Of Medicine
Dr. Senior graduated from University Of Cincinnati College Of Medicine in 1988.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Janine E. Senior accepts plans from 9 insurance carriers
Dr. Senior is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Elevance
- +1 more carriersWith a free account
Plan types Dr. Senior accepts, by number of carriers
- Medicare8
- PPO6
- HMO3
- POS3
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Janine E. Senior's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Janine E. Senior
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Janine E. Senior's NPI number?
Dr. Janine E. Senior's NPI number is 1154321503. It was assigned on July 28, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Janine E. Senior?
Dr. Janine E. Senior is an OB-GYN in Walnut Creek, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Janine E. Senior practice?
Dr. Senior practices at 2637 Shadelands Drive, Walnut Creek, CA 94598. Dr. Senior's primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dmand AI also links Dr. Senior to 1 hospital and 1 group practice or clinic.
What is Dr. Janine E. Senior's office phone number?
The practice phone on file for Dr. Senior is (925) 329-3710.
What is Dr. Janine E. Senior's medical license number?
Dr. Senior holds California license G74576, one of the licenses on file in 2 states.
Which states has Dr. Janine E. Senior been licensed in?
Dmand AI has state licenses on file for Dr. Senior in California (1992 to 2026) and Florida (1991 to 1998).
Which hospitals is Dr. Janine E. Senior affiliated with?
Dr. Senior is affiliated with John Muir Medical Center, Walnut Creek. Dmand AI links Dr. Senior to 1 more hospital.
What medical group is Dr. Janine E. Senior part of?
Dr. Senior is linked to BASS Medical Group.
Does Dr. Janine E. Senior accept Medicare?
Yes. CMS data shows Dr. Senior billed Medicare for 443 services in 2024, and Dr. Senior accepts Medicare assignment.
How many Medicare patients does Dr. Janine E. Senior see?
CMS counts 208 Medicare patients who saw Dr. Senior in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Dr. Janine E. Senior board certified?
Yes. Dr. Senior is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
What services does Dr. Janine E. Senior bill to Medicare?
In 2024, Dr. Senior's most billed Medicare services were lab and pathology test (82270), medicare service (G0101) and office visit, established patient (99213).
Where did Dr. Janine E. Senior go to medical school?
Dr. Senior graduated from University Of Cincinnati College Of Medicine in 1988.
What drugs does Dr. Janine E. Senior prescribe most?
In 2024 Medicare Part D data, Dr. Senior's most prescribed drugs by claims were Estradiol, Progesterone and Estradiol (Twice Weekly).
Has Dr. Janine E. Senior received payments from drug or device companies?
CMS Open Payments shows $3,640 in general payments to Dr. Senior from 29 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Janine E. Senior been practicing?
Dr. Senior graduated from medical school in 1988, 38 years ago.
What insurance does Dr. Janine E. Senior accept?
Dr. Senior is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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