NPPES file of Aug 9, 2026

Matthew John Liepke, M.D.

Internal Medicine Physician · Oswego, NY

Matthew John Liepke, M.D. is an internal medicine physician with a practice address in Oswego, New York, and NPI 1245220656, issued on Oct 26, 2005. Check the license (New York 234523, 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
1245220656
Name
Matthew John Liepke
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
234523 NY
Self-reported in NPPES; status is on the state search
Practice location
33 E Schuyler St, Oswego, NY 13126
Phone
(315) 343-6974
Enumerated
Oct 26, 2005
Record last updated
Mar 25, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(315) 342-3625
Medicaid ID
02635330 NY
Medicare enrollment
Enrolled (PECOS I20050405001054); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 2000
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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Also registered at 33 E Schuyler St

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

  1. Emily Crandell, PAMedical Physician Assistant1114476231
  2. Jillian Kendrick, FNP-CFamily Nurse Practitioner1598595480
  3. Christina Liepke, M.D.Family Medicine Physician1942290358
  4. Morgan Lucason, PA-CFamily Medicine Physician1821948787
  5. Patricia Muroski-Samul, LCSWClinical Social Worker1902817455
  6. Corliss Varnum, M.D.Family Medicine Physician1275523672

Verify Matthew John Liepke 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 234523
    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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2.6 times the Medicare Part D claims of the average internal medicine physician in 2024

8,385 Medicare Part D claims for 620 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 74 claims were for opioids.

  1. Matthew Liepke8,385
  2. Specialty average3,176

Most prescribed

  1. Lisinopril467 claims
  2. Duloxetine Hcl374 claims
  3. Rosuvastatin Calcium352 claims
  4. Atorvastatin Calcium342 claims
  5. Amlodipine Besylate217 claims
  6. Levothyroxine Sodium210 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 practice group's MIPS final score for 2023 (Medicare payment program): 90.6 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.

  1. Qualityout of 100 · 30% of the final score89.6
  2. Costout of 100 · 30%80.7
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $669.07

34 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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. Matthew Liepke$669.07
  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.

Bills Medicare through one group practice

  1. Port City Family Medicine PC IncOswego, NY

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

Matthew John Liepke among 12,067 internal medicine physician records in New York

Matthew John Liepke, 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
  • Graduated2000 · median 2002 among the 7,221 with a school on file
  • Record last updated2011 · 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).

15 internal medicine physician records list a practice address in Oswego

They are 15 of the 1,198 NPPES records with a practice address in Oswego, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Michael Alcasid, M.D.Oswego, NY 131261346357233
  2. Carmen Bautista Dator, MDOswego, NY 131261346267291
  3. Carlos Dator, MDOswego, NY 131261447271259
  4. Joy Dolorico-Magsino, M.D.Oswego, NY 131261467569319
  5. Soo Kim, MDOswego, NY 131261851475958
  6. Mario Magsino, M.D.Oswego, NY 131261922115427
  7. Renato Mandanas, M.D.Oswego, NY 131261154492296
  8. Christopher Massari, M.D.Oswego, NY 131261700948973

Common questions

What is Matthew John Liepke, M.D.'s NPI number?

Matthew John Liepke, M.D.'s National Provider Identifier (NPI) is 1245220656, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Matthew John Liepke, M.D. located?

The NPPES record lists a practice address at 33 E Schuyler St, Oswego, NY, 13126. Phone: (315) 343-6974. Providers update this record themselves, so call before visiting.

How can I verify Matthew John Liepke, M.D.'s license?

NPPES lists New York license number 234523, 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 Matthew John Liepke, M.D. prescribe under Medicare Part D?

In 2024, Matthew John Liepke, M.D. had 8,385 Medicare Part D claims for 620 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Matthew John Liepke, M.D.'s MIPS final score?

The 2023 MIPS final score is 90.6 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.