Registry data as of Aug 27, 2026

Gregory Schumacher, FNP-C

Pain Medicine Physician · Mesa, AZ

Gregory Schumacher, FNP-C is a pain medicine physician with a practice address in Mesa, Arizona, and NPI 1841840410, issued on Sep 16, 2019. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1841840410
Name
Gregory Schumacher
Credential
FNP-C
Primary taxonomy
Pain Medicine Physician 208VP0000X
Practice location
1148 W Baseline RD, Mesa, AZ 85210
Phone
(480) 559-3149
Enumerated
Sep 16, 2019
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 1148 W Baseline RD

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

  1. Megan AlvarezBehavior Analyst1518445394
  2. Robert Ibarra, FNP-CFamily Nurse Practitioner1114728391
  3. Chad Metz, LMSWClinical Social Worker1184031452
  4. Melissa Rutherford, MSN, APRN, FNP-CFamily Nurse Practitioner1063274025

Verify Gregory Schumacher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical BoardCheck 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.

2.2 times the Medicare Part D claims of the average pain medicine physician in 2024

4,679 Medicare Part D claims for 219 beneficiaries, against an average of 2,094 among the 708 providers of this specialty who prescribed in Part D. 2,558 claims were for opioids.

  1. Gregory Schumacher4,679
  2. Specialty average2,094

Most prescribed

  1. Oxycodone Hcl1,389 claims
  2. Tizanidine Hcl366 claims
  3. Gabapentin350 claims
  4. Morphine Sulfate Er264 claims
  5. Ibuprofen259 claims
  6. Hydrocodone-Acetaminophen231 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: $42.53

2 payments, mostly food and beverage; the largest payer was Protega Pharmaceutials Inc. The 552 providers of this specialty with any payment received $2,959.22 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Schumacher$42.53
  2. Specialty average$2,959.22

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

Pain Medicine Physician providers in Arizona

There are 41 pain medicine physician records in Arizona.

Other pain medicine physician records in Arizona

  1. Alfredo BejaranoPhoenix, AZ1033620778
  2. Eric Boyd, MDMesa, AZ1255355285
  3. Tony Bui, M.D.Phoenix, AZ1225323785
  4. Michael Castillo, MDGlendale, AZ1619991643
  5. Jose Chavez, D.O.Scottsdale, AZ1467730135
  6. Azizat Dawodu, MDPhoenix, AZ1063075570
  7. Armen Derian, M.D.Mesa, AZ1275978876
  8. Alexander Dydyk, DOAvondale, AZ1912435694
  9. Nicholas Elkins, D.O.Safford, AZ1780092346
  10. Steve Fanto, MDScottsdale, AZ1265539860

Common questions

What is Gregory Schumacher, FNP-C's NPI number?

Gregory Schumacher, FNP-C's National Provider Identifier (NPI) is 1841840410, issued on Sep 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Schumacher, FNP-C located?

The NPPES record lists a practice address at 1148 W Baseline RD, Mesa, AZ, 85210. Phone: (480) 559-3149. Providers update this record themselves, so call before visiting.

How can I verify Gregory Schumacher, FNP-C's license?

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 Gregory Schumacher, FNP-C prescribe under Medicare Part D?

In 2024, Gregory Schumacher, FNP-C had 4,679 Medicare Part D claims for 219 beneficiaries; the average among pain medicine physician prescribers was 2,094. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.