NPPES file of Aug 9, 2026

Gregory Mertz, MD

Infectious Disease Physician · Albuquerque, NM

Gregory Mertz, MD is an infectious disease physician with a practice address in Albuquerque, New Mexico, and NPI 1417964479, issued on Aug 2, 2006. Check the license (New Mexico 83-257, as entered in NPPES) on the New Mexico 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
1417964479
Name
Gregory Mertz
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
83-257 NM
Self-reported in NPPES; status is on the state search
Practice location
500 Walter St NE, Albuquerque, NM 87102
Phone
(505) 848-3730
Enumerated
Aug 2, 2006
Record last updated
Sep 25, 2024
Fax
(505) 217-2727
Medicaid ID
29843 NM
Medicare enrollment
Enrolled (PECOS I20070817000414); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1977
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 500 Walter St NE

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

  1. Kader Abdelerahman, M.D.Neurology Physician1003058157
  2. Douglas Barrett, MDNeurology Physician1972562973
  3. Maher Belmamoun, MDInternal Medicine Physician1306847025
  4. Allan Bendorf, CRNACertified Registered Nurse Anesthetist1922077239
  5. Christine Boehringer, D.O.Infectious Disease Physician1376545848
  6. Andrew Gaffney, PA-CPhysician Assistant1023367588

Verify Gregory Mertz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Mexico Medical Board
    Search for license 83-257
    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 New Mexico license search

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98% fewer Medicare Part D claims than the average infectious disease physician in 2024

12 Medicare Part D claims, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Gregory Mertz12
  2. Specialty average689

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.

Bills Medicare through one group practice

  1. Unm Medical Group IncAlbuquerque, NM

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

Gregory Mertz among 47 infectious disease physician records in New Mexico

Gregory Mertz, MD is one of 47 infectious disease physician records with a practice address in New Mexico. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 43% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated1977 · median 1996 among the 22 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a New Mexico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in New Mexico

There are 47 infectious disease physician records in New Mexico.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Christine Boehringer, D.O.Albuquerque, NM 871021376545848
  2. Mark Polhemus, MDAlbuquerque, NM 871021891027512
  3. Sarah AllenAlbuquerque, NM 871061720193287
  4. Leonor Echevarria, M.D.Albuquerque, NM 871061669408092
  5. Scott NorvilleAlbuquerque, NM 871061437181724
  6. Natalie Salas, MBBCHAlbuquerque, NM 871061285964833
  7. Nestor Sosa, MDAlbuquerque, NM 871061568927812
  8. Karla ThorntonAlbuquerque, NM 871061982611935

Common questions

What is Gregory Mertz, MD's NPI number?

Gregory Mertz, MD's National Provider Identifier (NPI) is 1417964479, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Mertz, MD located?

The NPPES record lists a practice address at 500 Walter St NE, Albuquerque, NM, 87102. Phone: (505) 848-3730. Providers update this record themselves, so call before visiting.

How can I verify Gregory Mertz, MD's license?

NPPES lists New Mexico license number 83-257, as entered by the provider. Search the New Mexico Medical Board at https://www.nmmb.state.nm.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Mertz, MD prescribe under Medicare Part D?

In 2024, Gregory Mertz, MD had 12 Medicare Part D claims; the average among infectious disease physician prescribers was 689. 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.