NPPES file of Aug 9, 2026

Jack L. Schafer, M.D.

Internal Medicine Physician · Phoenix, AZ

Jack L. Schafer, M.D. is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1275590671, issued on Apr 28, 2006. Check the license (Arizona 17574, 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
1275590671
Name
Jack L. Schafer
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
17574 AZ
Self-reported in NPPES; status is on the state search
Practice location
10835 North 25TH Avenue, Phoenix, AZ 85029
Phone
(602) 789-0344
Enumerated
Apr 28, 2006
Record last updated
Nov 26, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(602) 789-8389
Medicaid ID
293879-04 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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Also registered at 10835 North 25TH Avenue

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

  1. Imad Bouakl, M.D.Internal Medicine Physician1154390565
  2. Frederick Carranza, M.D.Hospitalist Physician1225007636
  3. Chinwe Egbo, M.D.Pediatrics Physician1447213822
  4. Hemang Gandhi, M.D.Internal Medicine Physician1467560565
  5. Andrew Odionu, MDPediatrics Physician1912183591
  6. Francisco John Peralta, M.D.Hospitalist Physician1487610499

Verify Jack L. Schafer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 17574    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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8% more Medicare Part D claims than the average internal medicine physician in 2024

3,442 Medicare Part D claims for 168 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 110 claims were for opioids.

  1. Jack Schafer3,442
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium234 claims
  2. Gabapentin190 claims
  3. Levothyroxine Sodium172 claims
  4. Amlodipine Besylate129 claims
  5. Tamsulosin Hcl105 claims
  6. Eliquis104 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: $103.58

1 payment: food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jack Schafer$103.58
  2. Specialty average$1,303.06

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

695 internal medicine physician records list a practice address in Phoenix

They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.

All 695 in Phoenix → All 2,853 in Arizona → Every provider in Phoenix →

Other internal medicine physician records in Arizona

  1. Daniel Aaronson, MDTucson, AZ1134865355
  2. Constantia Abarikwu, MDPhoenix, AZ1497832620
  3. Jaber Abawi, MDPayson, AZ1629038542
  4. Demsas Abay, MDPeoria, AZ1720312390
  5. Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
  6. Hassan Abbas, D.O.Mesa, AZ1477294775
  7. Jalal Abbas, M.D.Sun City West, AZ1205895034
  8. Tayeb Abbas, MDSun City West, AZ1093406795
  9. Hamed Abbaszadegan, MDPhoenix, AZ1407083579
  10. Kristopher Abbate, MDTucson, AZ1184112401

Common questions

What is Jack L. Schafer, M.D.'s NPI number?

Jack L. Schafer, M.D.'s National Provider Identifier (NPI) is 1275590671, issued on Apr 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jack L. Schafer, M.D. located?

The NPPES record lists a practice address at 10835 North 25TH Avenue, Phoenix, AZ, 85029. Phone: (602) 789-0344. Providers update this record themselves, so call before visiting.

How can I verify Jack L. Schafer, M.D.'s license?

NPPES lists Arizona license number 17574, 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 Jack L. Schafer, M.D. prescribe under Medicare Part D?

In 2024, Jack L. Schafer, M.D. had 3,442 Medicare Part D claims for 168 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

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.