Carolyn T. Phillips, M.D
Obstetrics & Gynecology Physician · Valencia, CA
Carolyn T. Phillips, M.D is an obstetrics & gynecology physician with a practice address in Valencia, California, and NPI 1184120081, issued on Apr 1, 2018. Check the license (California A165646, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carolyn T. Phillips
- Credential
- M.D
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A165646 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23803 Mcbean Pkwy Suite 202, Valencia, CA 91355
- Phone
- (661) 481-2400
- Enumerated
- Apr 1, 2018
- Record last updated
- Oct 3, 2025
- Fax
- (661) 255-5626
- Medicare enrollment
- Enrolled (PECOS I20221026001295); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Verify Carolyn T. Phillips in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A165646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
44 Medicare Part D claims for 17 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol27 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
- Providence Facey Medical FoundationPorter Ranch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carolyn T. Phillips among 5,088 obstetrics & gynecology physician records in California
Carolyn T. Phillips, 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 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2018 · 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).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Valencia → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- James Creighton, M.D.Valencia, CA 913551144599705
- Morgan Fullerton, MDSanta Clarita, CA 913551497147805
- Cecelia Hann, M.D.Valencia, CA 913551629125075
- Ajit Kittur, MDValencia, CA 913551316960396
- Rachel Long, MDValencia, CA 913551356535371
- Roscoe Marter, MD.Valencia, CA 913551609891142
- Jessica Murphy, M.D.Valencia, CA 913551801158282
- David Nguyen, MD.Valencia, CA 913551811042344
Common questions
What is Carolyn T. Phillips, M.D's NPI number?
Carolyn T. Phillips, M.D's National Provider Identifier (NPI) is 1184120081, issued on Apr 1, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Carolyn T. Phillips, M.D located?
The NPPES record lists a practice address at 23803 Mcbean Pkwy Suite 202, Valencia, CA, 91355. Phone: (661) 481-2400. Providers update this record themselves, so call before visiting.
How can I verify Carolyn T. Phillips, M.D's license?
NPPES lists California license number A165646, 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 Carolyn T. Phillips, M.D prescribe under Medicare Part D?
In 2024, Carolyn T. Phillips, M.D had 44 Medicare Part D claims for 17 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.