NPPES file of Aug 9, 2026

Fiona Redwood, M.D.

Obstetrics & Gynecology Physician · Petaluma, CA

Fiona Redwood, M.D. is an obstetrics & gynecology physician with a practice address in Petaluma, California, and NPI 1255323945, issued on Aug 18, 2005. Check the license (California C51019, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255323945
Name
Fiona Redwood
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
C51019 CA
Self-reported in NPPES; status is on the state search
Practice location
1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone
(707) 559-7500
Enumerated
Aug 18, 2005
Record last updated
Jun 25, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(707) 559-7570
Medicaid IDs
BCP70696F CA
FHC70696F CA
HAP70696F CA
Medicare enrollment
Enrolled (PECOS I20040729000720); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 1992
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 1179 N Mcdowell Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

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  4. Andrew Ashcroft, M.D.Family Medicine Physician1053306795
  5. Miriam Avena-Mascareno, FNP-CFamily Nurse Practitioner1629797246
  6. Yasaman AyatAcupuncturist1174239032

Verify Fiona Redwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C51019    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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84% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

26 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Fiona Redwood26
  2. Specialty average165

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.

Industry payments in 2024: $2.44

1 payment: food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Fiona Redwood$2.44
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Petaluma Health Center IncPetaluma, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Fiona Redwood among 5,088 obstetrics & gynecology physician records in California

Fiona Redwood, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1992 · median 2004 among the 2,700 with a school on file
  • Record last updated2020 · 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 Petaluma → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Caroline Barnhart, MDPetaluma, CA 949541437618774
  2. Julie Clark, MDPetaluma, CA 949541346216389
  3. Kellie Corcoran, MDPetaluma, CA 949541760817258
  4. Laurie Dibble, MDPetaluma, CA 949541487738555
  5. Anthony Kosinski, M.D.Petaluma, CA 949541588656631
  6. Elmira Manoucheri, M.D.Petaluma, CA 949541942475710
  7. Bonni Massa, M.D.Petaluma, CA 949541508933607
  8. Judith McCarthy, MDPetaluma, CA 949541770667750

Common questions

What is Fiona Redwood, M.D.'s NPI number?

Fiona Redwood, M.D.'s National Provider Identifier (NPI) is 1255323945, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Fiona Redwood, M.D. located?

The NPPES record lists a practice address at 1179 N Mcdowell Blvd, Petaluma, CA, 94954. Phone: (707) 559-7500. Providers update this record themselves, so call before visiting.

How can I verify Fiona Redwood, M.D.'s license?

NPPES lists California license number C51019, 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 Fiona Redwood, M.D. prescribe under Medicare Part D?

In 2024, Fiona Redwood, M.D. had 26 Medicare Part D claims for 12 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.