NPPES file of Aug 9, 2026

Oliver James Oatman, DO

Pediatric Endocrinology Physician · Phoenix, AZ

Oliver James Oatman, DO is a pediatric endocrinology physician with a practice address in Phoenix, Arizona, and NPI 1780857268, issued on Apr 7, 2008. Check the license (Arizona 6354, 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
1780857268
Name
Oliver James Oatman
Credential
DO
Primary taxonomy
Pediatric Endocrinology Physician 2080P0205X
License number
6354 AZ
Self-reported in NPPES; status is on the state search
Practice location
1920 E Cambridge Ave Ste 301, Phoenix, AZ 85006
Phone
(602) 933-0935
Enumerated
Apr 7, 2008
Record last updated
Mar 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(602) 933-2471
Medicare enrollment
Enrolled (PECOS I20140624000524); accepts Medicare assignment
Medical or professional school
Arizona College Of Osteopathic Medicine Mid Western University, 2008
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 1920 E Cambridge Ave Ste 301

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

  1. Lauren Abert, MS, RD,CDERegistered Dietitian1023446358
  2. Amanda Campos, M.D.Pediatric Endocrinology Physician1053653113
  3. Corinne Ciuris, R.D.Registered Dietitian1598257248
  4. Robert Gonsalves, DOPediatric Endocrinology Physician1619395357
  5. Bruce Hecht, M.D.Pediatric Cardiology Physician1174631196
  6. Casey Kinney, CDEDiabetes Educator Registered Nurse1538755848

Verify Oliver James Oatman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 6354
    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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70% fewer Medicare Part D claims than the average pediatric endocrinology physician in 2024

31 Medicare Part D claims, against an average of 105 among the 386 providers of this specialty who prescribed in Part D. Brand-name drugs were 84% of claims.

  1. Oliver Oatman31
  2. Specialty average105

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: $391.33

16 payments; by number, the most common kind was food and beverage; the largest payer was Beta Bionics, Inc. The 931 providers of this specialty with any payment received $4,382.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Oliver Oatman$391.33
  2. Specialty average$4,382.94

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

One hospital affiliation

  1. Phoenix Children's HospitalPhoenix, AZ · Childrens

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).

Oliver James Oatman among 36 pediatric endocrinology physician records in Arizona

Oliver James Oatman, DO is one of 36 pediatric endocrinology physician records with a practice address in Arizona. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 44% of them.

  • NPI issued2008 · 44% of these records are older, 36% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated2008 · median 2009 among the 17 with a school on file
  • Record last updated2018 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0205X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Endocrinology Physician providers in Arizona

There are 36 pediatric endocrinology physician records in Arizona.

The 8 pediatric endocrinology physician records with the nearest ZIP codes

  1. Amanda Campos, M.D.Phoenix, AZ 850061053653113
  2. Robert Gonsalves, DOPhoenix, AZ 850061619395357
  3. Bethany Gottesman Bowen, MDPhoenix, AZ 850061164849899
  4. Dorothee Newbern, M.D.Phoenix, AZ 850061588837900
  5. Micah Olson, MDPhoenix, AZ 850061417981440
  6. Grazyna Piekos-Sobczak, M.D.Phoenix, AZ 850061992797906
  7. Janiel Pimentel-Vasquez, MDPhoenix, AZ 850061881932226
  8. Pamela Smith, M.D.Phoenix, AZ 850061518306448

Common questions

What is Oliver James Oatman, DO's NPI number?

Oliver James Oatman, DO's National Provider Identifier (NPI) is 1780857268, issued on Apr 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Oliver James Oatman, DO located?

The NPPES record lists a practice address at 1920 E Cambridge Ave Ste 301, Phoenix, AZ, 85006. Phone: (602) 933-0935. Providers update this record themselves, so call before visiting.

How can I verify Oliver James Oatman, DO's license?

NPPES lists Arizona license number 6354, 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 Oliver James Oatman, DO prescribe under Medicare Part D?

In 2024, Oliver James Oatman, DO had 31 Medicare Part D claims; the average among pediatric endocrinology physician prescribers was 105. 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.