NPPES file of Aug 9, 2026

Erin A. O'Sullivan, MD

Obstetrics & Gynecology Physician · Phoenix, AZ

Erin A. O'Sullivan, MD is an obstetrics & gynecology physician with a practice address in Phoenix, Arizona, and NPI 1336133511, issued on Sep 2, 2005. Check the license (Arizona 24088, as entered in NPPES) on the Arizona Medical Board; 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
1336133511
Name
Erin A. O'Sullivan
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
24088 AZ
Self-reported in NPPES; status is on the state search
Practice location
9305 W Thomas RD Ste 155, Phoenix, AZ 85037
Phone
(623) 936-1780
Enumerated
Sep 2, 2005
Record last updated
May 24, 2023
Fax
(623) 936-9116
Medicaid ID
348856 AZ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 803 in Arizona → Look up another NPI →

Also registered at 9305 W Thomas RD Ste 155

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

  1. Arielle Bakhiet, CNMMidwife1073244778
  2. Emily BennerWomen's Health Nurse Practitioner1578280376
  3. Kimberly Bower, FNPFamily Nurse Practitioner1245937960
  4. Nellie Crawford, M.D.Obstetrics & Gynecology Physician1740591833
  5. Shefali Gandhi-List, M.D.Obstetrics & Gynecology Physician1063446656
  6. Katelin HilderbrandtRegistered Nurse1134047509

Verify Erin A. O'Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 24088    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 Arizona 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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Industry payments in 2024: $10.47

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. Erin O'Sullivan$10.47
  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.

Erin A. O'Sullivan among 803 obstetrics & gynecology physician records in Arizona

Erin A. O'Sullivan, MD is one of 803 obstetrics & gynecology physician records with a practice address in Arizona. 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, 86% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2023 · 49% 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 Arizona 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 Arizona

There are 803 obstetrics & gynecology physician records in Arizona.

All 803 in Arizona → Every provider in Phoenix → Obstetrics & Gynecology Physician nationwide →

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

  1. Lorenzo Boyce, MDPhoenix, AZ 850371194745547
  2. Katie Campuzano, M.D.Phoenix, AZ 850371144228420
  3. Fredrick Fingerhut, M.D.Phoenix, AZ 850371124007752
  4. Shefali Gandhi-List, M.D.Phoenix, AZ 850371063446656
  5. Galen Johnson, M.D.Phoenix, AZ 850371528047214
  6. Janice Labranche, MDPhoenix, AZ 850371821161068
  7. Richard Ohanesian, MDPhoenix, AZ 850371699773978
  8. Jordan Oland, M.D.Phoenix, AZ 850371639135460

Common questions

What is Erin A. O'Sullivan, MD's NPI number?

Erin A. O'Sullivan, MD's National Provider Identifier (NPI) is 1336133511, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Erin A. O'Sullivan, MD located?

The NPPES record lists a practice address at 9305 W Thomas RD Ste 155, Phoenix, AZ, 85037. Phone: (623) 936-1780. Providers update this record themselves, so call before visiting.

How can I verify Erin A. O'Sullivan, MD's license?

NPPES lists Arizona license number 24088, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.