NPPES file of Aug 9, 2026

Florence Ann Dibiase, MD

Obstetrics & Gynecology Physician · Stanford, CA

Florence Ann Dibiase, MD is an obstetrics & gynecology physician with a practice address in Stanford, California, and NPI 1336709278, issued on Jun 13, 2019. Check the license (California A188995, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336709278
Name
Florence Ann Dibiase
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
A188995 CA
LP04685 RI
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Jun 13, 2019
Record last updated
Apr 24, 2024
Medicare enrollment
Enrolled (PECOS I20231018002874); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 2019
Telehealth
Offers telehealth (CMS)
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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Also registered at 300 Pasteur Dr

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

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Florence Ann Dibiase in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A188995
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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81% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

31 Medicare Part D claims for 14 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Florence Dibiase31
  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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.3
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Florence Ann Dibiase among 5,088 obstetrics & gynecology physician records in California

Florence Ann Dibiase, MD 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 2019, is newer than 92% of them.

  • NPI issued2019 · 92% of these records are older, 6% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2019 · median 2004 among the 2,700 with a school on file
  • Record last updated2024 · 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.

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

  1. Anna Altshuler, MDStanford, CA 943051447583877
  2. Rachel Chan Seay, MDStanford, CA 943051578790127
  3. Brooke Friedman, M.D.Stanford, CA 943051487836052
  4. Amreen Husain, MDStanford, CA 943051790856474
  5. Mary JacobsonStanford, CA 943051952443913
  6. Michelle Khan, MDStanford, CA 943051699970947
  7. Jonathan Kort, M.D.Stanford, CA 943051326364332
  8. Lisa Lee, MDStanford, CA 943051952374936

Common questions

What is Florence Ann Dibiase, MD's NPI number?

Florence Ann Dibiase, MD's National Provider Identifier (NPI) is 1336709278, issued on Jun 13, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Florence Ann Dibiase, MD located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Florence Ann Dibiase, MD's license?

NPPES lists California license number A188995, 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 Florence Ann Dibiase, MD prescribe under Medicare Part D?

In 2024, Florence Ann Dibiase, MD had 31 Medicare Part D claims for 14 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Florence Ann Dibiase, MD's MIPS final score?

The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.