Mark D. Chazen, M.D.
Urology Physician · Cheektowaga, NY
Mark D. Chazen, M.D. is a urology physician with a practice address in Cheektowaga, New York, and NPI 1518931989, issued on Feb 14, 2006. Check the license (New York 191098-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark D. Chazen
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- 191098-1 NY
191098 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3085 Harlem Road, Cheektowaga, NY 14225
- Phone
- (716) 844-5000
- Enumerated
- Feb 14, 2006
- Record last updated
- Mar 1, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (716) 844-5050
- Medicaid ID
- 01739899 NY
- Medicare enrollment
- Enrolled (PECOS I20110114000011); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,091 in New York → Look up another NPI →
Also registered at 3085 Harlem Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Philip Aliotta, M.D.Urology Physician1760455356
- John Pinski, M.D.Urology Physician1316911779
- Dhiren Shah, MDRadiation Oncology Physician1427011782
- Amy Walter, P.T., D.P.T.Physical Therapist1477707198
Verify Mark D. Chazen 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 191098-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average urology physician in 2024
1,121 Medicare Part D claims for 456 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl317 claims
- Finasteride125 claims
- Myrbetriq113 claims
- Gemtesa86 claims
- Trospium Chloride71 claims
- Sulfamethoxazole-Trimethoprim45 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): 75.8 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: $428.25
20 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 9,340 providers of this specialty with any payment received $3,800.04 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
- Erie County Medical Center CorporationBuffalo, NY
- Great Lakes Physician PCCheektowaga, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark D. Chazen among 1,091 urology physician records in New York
Mark D. Chazen, M.D. is one of 1,091 urology physician records with a practice address in New York. 80% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 47% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1997 · median 2000 among the 735 with a school on file
- Record last updated2011 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X 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 urology physician records list a practice address in Cheektowaga
They are 15 of the 1,580 NPPES records with a practice address in Cheektowaga, and 1,091 urology physician records in New York.
All 1,091 in New York → Every provider in Cheektowaga → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Philip Aliotta, M.D.Cheektowaga, NY 142251760455356
- Kevin Barlog, M.D.Cheektowaga, NY 142251174520696
- John Barlog, MDCheektowaga, NY 142251629633714
- John Bodkin, MDCheektowaga, NY 142251144464942
- K Chevli, M.D.Cheektowaga, NY 142251215934781
- Brian Dinerman, MDCheektowaga, NY 142251174054506
- Richard Gilbert, M.D.Cheektowaga, NY 142251336146984
- Joseph Greco, M.D.Cheektowaga, NY 142251487650016
Common questions
What is Mark D. Chazen, M.D.'s NPI number?
Mark D. Chazen, M.D.'s National Provider Identifier (NPI) is 1518931989, issued on Feb 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Chazen, M.D. located?
The NPPES record lists a practice address at 3085 Harlem Road, Cheektowaga, NY, 14225. Phone: (716) 844-5000. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Chazen, M.D.'s license?
NPPES lists New York license number 191098-1, 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 Mark D. Chazen, M.D. prescribe under Medicare Part D?
In 2024, Mark D. Chazen, M.D. had 1,121 Medicare Part D claims for 456 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Mark D. Chazen, M.D.'s MIPS final score?
The 2023 MIPS final score is 75.8 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.