NPPES file of Aug 9, 2026

Gary Christopher Guerrino, M.D.

Internal Medicine Physician · Mount Vernon, NY

Gary Christopher Guerrino, M.D. is an internal medicine physician with a practice address in Mount Vernon, New York, and NPI 1811981194, issued on Sep 1, 2005. Check the license (New York 181694-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811981194
Name
Gary Christopher Guerrino
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
181694-1 NY
Self-reported in NPPES; status is on the state search
Practice location
400 E Sandford Blvd, Mount Vernon, NY 10550
Phone
(914) 699-0109
Enumerated
Sep 1, 2005
Record last updated
Dec 16, 2022
Fax
(914) 699-0385
Medicaid ID
01252822 NY
Medicare enrollment
Enrolled (PECOS I20110613000159); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Verify Gary Christopher Guerrino in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 181694-1
    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 York 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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2.1 times the Medicare Part D claims of the average internal medicine physician in 2024

6,785 Medicare Part D claims for 597 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 40 claims were for opioids.

  1. Gary Guerrino6,785
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium592 claims
  2. Amlodipine Besylate557 claims
  3. Metoprolol Succinate228 claims
  4. Losartan Potassium210 claims
  5. Metformin Hcl175 claims
  6. Levothyroxine Sodium163 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.

The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Lawrence Medical Associates PCMount Vernon, NY

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

Gary Christopher Guerrino among 12,067 internal medicine physician records in New York

Gary Christopher Guerrino, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1985 · median 2002 among the 7,221 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 internal medicine physician records list a practice address in Mount Vernon

They are 32 of the 1,231 NPPES records with a practice address in Mount Vernon, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mahdi Abdullah, MDMount Vernon, NY 105501285601914
  2. Francis Agbonkpolo, M.D.Mount Vernon, NY 105501467555458
  3. Markos Asamenew, MDMount Vernon, NY 105501376557652
  4. Paola Greiger-Zanlungo, M.D.Mt Vernon, NY 105501306824339
  5. Leslie Julien, MDMount Vernon, NY 105501245204973
  6. Paul Koltovich, MDMount Vernon, NY 105501396719027
  7. Steven Levine, M.D.Mount Vernon, NY 105501467549709
  8. Frederick Parker, MDMount Vernon, NY 105501437124807

Common questions

What is Gary Christopher Guerrino, M.D.'s NPI number?

Gary Christopher Guerrino, M.D.'s National Provider Identifier (NPI) is 1811981194, issued on Sep 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gary Christopher Guerrino, M.D. located?

The NPPES record lists a practice address at 400 E Sandford Blvd, Mount Vernon, NY, 10550. Phone: (914) 699-0109. Providers update this record themselves, so call before visiting.

How can I verify Gary Christopher Guerrino, M.D.'s license?

NPPES lists New York license number 181694-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gary Christopher Guerrino, M.D. prescribe under Medicare Part D?

In 2024, Gary Christopher Guerrino, M.D. had 6,785 Medicare Part D claims for 597 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Gary Christopher Guerrino, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100. 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.