Walter W. Mills, MD
Family Medicine Physician · Santa Cruz, CA
Walter W. Mills, MD is a family medicine physician with a practice address in Santa Cruz, California, and NPI 1871677948, issued on Oct 25, 2006. Check the license (California G45945, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Walter W. Mills
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G45945 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1510 Capitola RD, Santa Cruz, CA 95062
- Phone
- (831) 427-3500
- Enumerated
- Oct 25, 2006
- Record last updated
- Oct 26, 2023
- Medicaid ID
- 00G459450 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1510 Capitola RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadia AllamiPediatric Nurse Practitioner1346723087
- Jacqueline AlvarezMarriage & Family Therapist1093436511
- Michael Amster, MDPain Medicine Physician1114023058
- Krystina Begonia, MDFamily Medicine Physician1760942734
- Rebecca Breton, MDPediatrics Physician1659367548
- Karen Carranza, RNRegistered Nurse1013730001
Verify Walter W. Mills in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G45945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average family medicine physician in 2024
414 Medicare Part D claims for 44 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Atorvastatin Calcium75 claims
- Furosemide51 claims
- Losartan Potassium48 claims
- Amlodipine Besylate27 claims
- Hydrochlorothiazide20 claims
- Losartan-Hydrochlorothiazide12 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.
Walter W. Mills among 17,133 family medicine physician records in California
Walter W. Mills, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
114 family medicine physician records list a practice address in Santa Cruz
They are 114 of the 5,138 NPPES records with a practice address in Santa Cruz, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Cruz → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Rachel Abrams, M.D.Santa Cruz, CA 950621578542171
- David Beck, MDSanta Cruz, CA 950621235101122
- Deborah Bronstein, M.D.Santa Cruz, CA 950621245219393
- William Ebert, MDSanta Cruz, CA 950621982609848
- Bruce Eisendorf, M.D.Santa Cruz, CA 950621760462824
- Dawn Faber, M.D.Santa Cruz, CA 950621346201878
- Patricia Hinz, M.D.Santa Cruz, CA 950621750361077
- Duncan HolbertSanta Cruz, CA 950621770563520
Common questions
What is Walter W. Mills, MD's NPI number?
Walter W. Mills, MD's National Provider Identifier (NPI) is 1871677948, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Walter W. Mills, MD located?
The NPPES record lists a practice address at 1510 Capitola RD, Santa Cruz, CA, 95062. Phone: (831) 427-3500. Providers update this record themselves, so call before visiting.
How can I verify Walter W. Mills, MD's license?
NPPES lists California license number G45945, 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 Walter W. Mills, MD prescribe under Medicare Part D?
In 2024, Walter W. Mills, MD had 414 Medicare Part D claims for 44 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.