Gregory Makar, DO
Medical Toxicology (Emergency Medicine) Physician · Phoenix, AZ
Gregory Makar, DO is a medical toxicology (emergency medicine) physician with a practice address in Phoenix, Arizona, and NPI 1881042091, issued on May 27, 2016. Check the license (Arizona 008732, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Makar
- Credential
- DO
- Primary taxonomy
- Medical Toxicology (Emergency Medicine) Physician 207PT0002X
- License number
- 008732 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1111 E Mcdowell RD, Building A, Phoenix, AZ 85006
- Phone
- (303) 929-0141
- Enumerated
- May 27, 2016
- Record last updated
- Feb 12, 2024
- Fax
- (602) 839-4138
- Medicare enrollment
- Enrolled (PECOS I20220707000684); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 2016
- Entity
- Type 1 · individual
4 nearest medical toxicology (emergency medicine) physician records → All 5 in Arizona → Look up another NPI →
Verify Gregory Makar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 008732Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 88.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Banner - University Physician Specialists LLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Toxicology (Emergency Medicine) Physician providers in Arizona
There are 5 medical toxicology (emergency medicine) physician records in Arizona.
All 5 in Arizona → Every provider in Phoenix → Medical Toxicology (Emergency Medicine) Physician nationwide →
The 4 medical toxicology (emergency medicine) physician records with the nearest ZIP codes
- Daniel Brooks, MDPhoenix, AZ 850061326010331
- Dany Quan, D.O.Phoenix, AZ 850281710954847
- Adiel Aizenberg, MDTucson, AZ 857241790340784
- John Sullivan, MDTucson, AZ 857241265504252
Common questions
What is Gregory Makar, DO's NPI number?
Gregory Makar, DO's National Provider Identifier (NPI) is 1881042091, issued on May 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Makar, DO located?
The NPPES record lists a practice address at 1111 E Mcdowell RD, Building A, Phoenix, AZ, 85006. Phone: (303) 929-0141. Providers update this record themselves, so call before visiting.
How can I verify Gregory Makar, DO's license?
NPPES lists Arizona license number 008732, 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.
What is Gregory Makar, DO's MIPS final score?
The 2023 MIPS final score is 88.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.