NPPES file of Aug 9, 2026

May Chambers, MD

Obstetrics & Gynecology Physician · San Luis, AZ

May Chambers, MD is an obstetrics & gynecology physician with a practice address in San Luis, Arizona, and NPI 1669512026, issued on Feb 7, 2007. Check the license (Arizona 66142, 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
1669512026
Name
May Chambers
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
66142 AZ
1883851205 UT
Self-reported in NPPES; status is on the state search
Practice location
151 S Oak Ave Ste 3, San Luis, AZ 85336
Phone
(928) 662-0412
Enumerated
Feb 7, 2007
Record last updated
Aug 8, 2023
Medicaid ID
109762 AZ
Medicare enrollment
Enrolled (PECOS I20220620001809); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 1990
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 151 S Oak Ave Ste 3

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

  1. Monica Montufar, CNMAdvanced Practice Midwife1003927336

Verify May Chambers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 66142
    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

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47% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

87 Medicare Part D claims for 21 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. May Chambers87
  2. Specialty average165

Most prescribed

  1. Estradiol30 claims
  2. Triamcinolone Acetonide19 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.

Industry payments in 2024: $14.96

1 payment: food and beverage; the largest payer was Novo Nordisk Inc. 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. May Chambers$14.96
  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. San Luis Walk-IN Clinic IncSomerton, AZ

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

May Chambers among 803 obstetrics & gynecology physician records in Arizona

May Chambers, 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 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 42% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1990 · median 2005 among the 477 with a school on file
  • 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).

3 obstetrics & gynecology physician records list a practice address in San Luis

They are 3 of the 133 NPPES records with a practice address in San Luis, and 803 obstetrics & gynecology physician records in Arizona.

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

  1. Laurie Allen, D.O.Goodyear, AZ 853381801093794
  2. Brunilda Rosario, DOGoodyear, AZ 853381366497505
  3. William Sun, MDGoodyear, AZ 853381457306698
  4. Thomas Glodek, M.D.Litchfield Park, AZ 853401841486644
  5. Laurence Novick, MDParker, AZ 853441669790663
  6. Robert Brooks, MDSan Luis, AZ 853491609870385
  7. Charlotte Richards, MDSan Luis, AZ 853491851358857
  8. Michael Stevens, M.D.Somerton, AZ 853501154365187

Common questions

What is May Chambers, MD's NPI number?

May Chambers, MD's National Provider Identifier (NPI) is 1669512026, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is May Chambers, MD located?

The NPPES record lists a practice address at 151 S Oak Ave Ste 3, San Luis, AZ, 85336. Phone: (928) 662-0412. Providers update this record themselves, so call before visiting.

How can I verify May Chambers, MD's license?

NPPES lists Arizona license number 66142, 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.

How much does May Chambers, MD prescribe under Medicare Part D?

In 2024, May Chambers, MD had 87 Medicare Part D claims for 21 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.