Jason Harold Mendler, MD, PHD
Hematology (Internal Medicine) Physician · Rochester, NY
Jason Harold Mendler, MD, PHD is a hematology (internal medicine) physician with a practice address in Rochester, New York, and NPI 1932211620, issued on Aug 31, 2006. Check the license (New York 243730, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jason Harold Mendler
- Credential
- MD, PHD
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License numbers
- 243730 NY
35.093301 OH
Self-reported in NPPES; status is on the state search - Practice location
- 601 Elmwood Ave, Rochester, NY 14642
- Phone
- (585) 275-5823
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 6, 2023
- Fax
- (585) 273-1051
- Medicaid ID
- PENDING OH
- Medicare enrollment
- Enrolled (PECOS I20080508000759); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 161 in New York → Look up another NPI →
Also registered at 601 Elmwood Ave
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Verify Jason Harold Mendler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 243730Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
188 Medicare Part D claims for 47 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Acyclovir22 claims
- Hydroxyurea22 claims
- Fluconazole19 claims
- Jakafi17 claims
- Deferasirox15 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): 76.8 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).
Industry payments in 2024: $58.69
1 payment: food and beverage; the largest payer was Astellas Pharma Global Development. The 721 providers of this specialty with any payment received $13,778.35 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Hematology Clinical GroupRochester, NY
- University OF RochesterRochester, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason Harold Mendler among 161 hematology (internal medicine) physician records in New York
Jason Harold Mendler, MD, PHD is one of 161 hematology (internal medicine) physician records with a practice address in New York. 73% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 44% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2005 · median 2001 among the 92 with a school on file
- Record last updated2023 · 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 207RH0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in New York
There are 161 hematology (internal medicine) physician records in New York.
All 161 in New York → Every provider in Rochester → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Paul Barr, MDRochester, NY 146421407946460
- Steven Bernstein, MDRochester, NY 146421851319867
- Carla Casulo, M.D.Rochester, NY 146421942338629
- Charles Francis, MDRochester, NY 146421750309761
- Jonathon Friedberg, MDRochester, NY 146421821016833
- Alissa Huston, M.D.Rochester, NY 146421124086467
- Jainulabdeen Ifthikharuddin, MDRochester, NY 146421578597787
- Karen Kaplan, MDRochester, NY 146421588670079
Common questions
What is Jason Harold Mendler, MD, PHD's NPI number?
Jason Harold Mendler, MD, PHD's National Provider Identifier (NPI) is 1932211620, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jason Harold Mendler, MD, PHD located?
The NPPES record lists a practice address at 601 Elmwood Ave, Rochester, NY, 14642. Phone: (585) 275-5823. Providers update this record themselves, so call before visiting.
How can I verify Jason Harold Mendler, MD, PHD's license?
NPPES lists New York license number 243730, 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 Jason Harold Mendler, MD, PHD prescribe under Medicare Part D?
In 2024, Jason Harold Mendler, MD, PHD had 188 Medicare Part D claims for 47 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. Part D covers Medicare prescriptions only.
What is Jason Harold Mendler, MD, PHD's MIPS final score?
The 2023 MIPS final score is 76.8 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.