NPPES file of Aug 9, 2026

Paul Schaefer, DO

Critical Care Medicine (Internal Medicine) Physician · Chandler, AZ

Paul Schaefer, DO is a critical care medicine (internal medicine) physician with a practice address in Chandler, Arizona, and NPI 1598298499, issued on Apr 6, 2017. Check the license (Arizona 009781, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598298499
Name
Paul Schaefer
Credential
DO
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
009781 AZ
Self-reported in NPPES; status is on the state search
Practice location
1955 W Frye RD, Chandler, AZ 85224
Phone
(480) 909-3870
Enumerated
Apr 6, 2017
Record last updated
Dec 6, 2024
Fax
(602) 230-6462
Medicare enrollment
Enrolled (PECOS I20220817001728); accepts Medicare assignment
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 critical care medicine (internal medicine) physician records → All 180 in Arizona → Look up another NPI →

Also registered at 1955 W Frye RD

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

  1. Michael Anthony Abala, MDStudent in an Organized Health Care Education/Training Program1639868466
  2. Rafael Ablao, DOStudent in an Organized Health Care Education/Training Program1952090797
  3. Yara AbukhaledStudent in an Organized Health Care Education/Training Program1033913207
  4. Ryan Adkins, D.O.Emergency Medicine Physician1417483538
  5. Shayan Ahmad, DOStudent in an Organized Health Care Education/Training Program1487596219
  6. Sahir Ahmed, M.D.Anesthesiology Physician1508187097

Verify Paul Schaefer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 009781    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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Bills Medicare through one group practice

  1. Sjhmc Physician ServicesGilbert, AZ

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

Paul Schaefer among 180 critical care medicine (internal medicine) physician records in Arizona

Paul Schaefer, DO is one of 180 critical care medicine (internal medicine) physician records with a practice address in Arizona. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 87% of them.

  • NPI issued2017 · 87% of these records are older, 11% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated2017 · median 2007 among the 155 with a school on file
  • Record last updated2024 · 29% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Arizona

There are 180 critical care medicine (internal medicine) physician records in Arizona.

All 180 in Arizona → Every provider in Chandler → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Daniel Belen, DOChandler, AZ 852241790722452
  2. Lucas Birmelin, M.D.Chandler, AZ 852241750378261
  3. Ahmad Chebbo, MDChandler, AZ 852241710115910
  4. Matthew Dikin, DOChandler, AZ 852241700871175
  5. Jill Gualdoni, M.D.Chandler, AZ 852241376981472
  6. Yu Huang, M. D.Chandler, AZ 852241992851828
  7. Philip Husband, MDChandler, AZ 852241417019753
  8. Francis Maguire, D.O.Chandler, AZ 852241437317112

Common questions

What is Paul Schaefer, DO's NPI number?

Paul Schaefer, DO's National Provider Identifier (NPI) is 1598298499, issued on Apr 6, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Paul Schaefer, DO located?

The NPPES record lists a practice address at 1955 W Frye RD, Chandler, AZ, 85224. Phone: (480) 909-3870. Providers update this record themselves, so call before visiting.

How can I verify Paul Schaefer, DO's license?

NPPES lists Arizona license number 009781, 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.