Carol Jean Treinen, MD
Physical Medicine & Rehabilitation Physician · Redwood City, CA
Carol Jean Treinen, MD is a physical medicine & rehabilitation physician with a practice address in Redwood City, California, and NPI 1396817136, issued on Nov 15, 2006. Check the license (California A63328, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carol Jean Treinen
- Credential
- MD
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- A63328 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1150 Veterans Blvd, Redwood City, CA 94063
- Phone
- (650) 299-2000
- Enumerated
- Nov 15, 2006
- Record last updated
- Jan 10, 2022
- Medicaid ID
- 00A633280 CA
- Medicare enrollment
- Enrolled (PECOS I20101124000947); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,549 in California → Look up another NPI →
Also registered at 1150 Veterans Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anil Assudani, M.D,Psychiatry Physician1497753909
- Everett Austin, MDNeurology Physician1083792642
- Lauren Bacon, DPTPhysical Therapist1295167583
Verify Carol Jean Treinen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63328Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
348 Medicare Part D claims for 123 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 21 claims were for opioids.
Most prescribed
- Gabapentin77 claims
- Meloxicam71 claims
- Duloxetine Hcl50 claims
- Baclofen25 claims
- Prednisone18 claims
- Ibuprofen15 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 IncRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carol Jean Treinen among 1,549 physical medicine & rehabilitation physician records in California
Carol Jean Treinen, MD is one of 1,549 physical medicine & rehabilitation physician records with a practice address in California. 59% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 70% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1992 · median 2008 among the 786 with a school on file
- Record last updated2022 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in California
There are 1,549 physical medicine & rehabilitation physician records in California.
All 1,549 in California → Every provider in Redwood City → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Christopher Bonzon, M.D.Redwood City, CA 940631215197199
- Elaine Date, M.D.Redwood City, CA 940631023107364
- Grace Firtch, MDRedwood City, CA 940631518045103
- Srinivas Ganesh, MDRedwood City, CA 940631437237021
- Claudia Haeussler, DPTRedwood City, CA 940631376213876
- Elizabeth Heilman, MDRedwood City, CA 940631992879217
- Raymond Lai, DORedwood City, CA 940631194803635
- Katharine Lai, DORedwood City, CA 940631144394743
Common questions
What is Carol Jean Treinen, MD's NPI number?
Carol Jean Treinen, MD's National Provider Identifier (NPI) is 1396817136, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carol Jean Treinen, MD located?
The NPPES record lists a practice address at 1150 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-2000. Providers update this record themselves, so call before visiting.
How can I verify Carol Jean Treinen, MD's license?
NPPES lists California license number A63328, 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 Carol Jean Treinen, MD prescribe under Medicare Part D?
In 2024, Carol Jean Treinen, MD had 348 Medicare Part D claims for 123 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.