Rosanne Mayhew, M.D.
Obstetrics & Gynecology Physician · Los Gatos, CA
Rosanne Mayhew, M.D. is an obstetrics & gynecology physician with a practice address in Los Gatos, California, and NPI 1124120985, issued on Sep 2, 2006. Check the license (California A44044, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rosanne Mayhew
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A44044 CA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Pollard RD Ste B203, Los Gatos, CA 95032
- Phone
- (408) 871-1885
- Enumerated
- Sep 2, 2006
- Record last updated
- May 31, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (408) 871-8405
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 800 Pollard RD Ste B203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Siriporn Usanakornkul, L.AC.Acupuncturist1922529197
Verify Rosanne Mayhew in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A44044Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
75 Medicare Part D claims for 18 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 73% of claims.
Most prescribed
- Levoxyl26 claims
- Cytomel14 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.
Rosanne Mayhew among 5,088 obstetrics & gynecology physician records in California
Rosanne Mayhew, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2013 · 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).
37 obstetrics & gynecology physician records list a practice address in Los Gatos
They are 37 of the 1,905 NPPES records with a practice address in Los Gatos, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Los Gatos → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Elizabeth Adie, M.D.Los Gatos, CA 950321578535084
- Jose Bolanos, MDLos Gatos, CA 950321992721989
- Kristine Borrison, MDLos Gatos, CA 950321730144072
- Ling Chen, MDLos Gatos, CA 950321649216888
- Anthony Damore, MDLos Gatos, CA 950321932131307
- Mary Imig, MDLos Gatos, CA 950321194780957
- Karen Kunzel, MDLos Gatos, CA 950321184689911
- Tamara Neuhaus, MDLos Gatos, CA 950321235157892
Common questions
What is Rosanne Mayhew, M.D.'s NPI number?
Rosanne Mayhew, M.D.'s National Provider Identifier (NPI) is 1124120985, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rosanne Mayhew, M.D. located?
The NPPES record lists a practice address at 800 Pollard RD Ste B203, Los Gatos, CA, 95032. Phone: (408) 871-1885. Providers update this record themselves, so call before visiting.
How can I verify Rosanne Mayhew, M.D.'s license?
NPPES lists California license number A44044, 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 Rosanne Mayhew, M.D. prescribe under Medicare Part D?
In 2024, Rosanne Mayhew, M.D. had 75 Medicare Part D claims for 18 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.