NPPES file of Aug 9, 2026

Feliks Chechelniker, MD

Internal Medicine Physician · Brooklyn, NY

Feliks Chechelniker, MD is an internal medicine physician with a practice address in Brooklyn, New York, and NPI 1558381491, issued on Jul 21, 2006. Check the license (New York 236690, 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
1558381491
Name
Feliks Chechelniker
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
236690 NY
Self-reported in NPPES; status is on the state search
Practice location
312 Neptune Ave, Brooklyn, NY 11235
Phone
(718) 934-7593
Enumerated
Jul 21, 2006
Record last updated
Mar 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(646) 405-0174
Medicaid ID
02699989 NY
Medicare enrollment
Enrolled (PECOS I20051107001147); 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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Also registered at 312 Neptune Ave

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

  1. Alexander Kanevsky, DDSDentist1346258365
  2. Frida Popilevsky, MDPulmonary Disease Physician1104086156
  3. Pavel Shulman, MDHospice and Palliative Medicine (Internal Medicine) Physician1114949328

Verify Feliks Chechelniker 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 236690
    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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1% fewer Medicare Part D claims than the average internal medicine physician in 2024

3,145 Medicare Part D claims for 87 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 24 claims were for opioids.

  1. Feliks Chechelniker3,145
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate131 claims
  2. Rosuvastatin Calcium107 claims
  3. Metformin Hcl88 claims
  4. Atorvastatin Calcium78 claims
  5. Eliquis78 claims
  6. Metoprolol Succinate78 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): 72.1 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 score40.0
  2. Costout of 100 · 30%33.7
  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. Feliks Chechelniker Medical Services PCBrooklyn, NY

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

1,497 internal medicine physician records list a practice address in Brooklyn

They are 1,497 of the 64,057 NPPES records with a practice address in Brooklyn, and 12,067 internal medicine physician records in New York.

Other internal medicine physician records in New York

  1. Deborah Aanonsen, D.O.Staten Island, NY1952395717
  2. Nivedita Aanur, M.D.New York, NY1982833471
  3. Jay Aaron, MDGreat Neck, NY1245332956
  4. Ahmad AbadiPoughkeepsie, NY1780258517
  5. Jamsheed Abadi, MDBrooklyn, NY1477537496
  6. Antonieta Abarientos, MDNew Rochelle, NY1649285123
  7. Zurab Abayev, M.D.Brooklyn, NY1841283058
  8. Ehab Abaza, MDNew York, NY1114507555
  9. Vaidarshi Abbagoni, MDNew York, NY1871237495
  10. Muhammad AbbasRichmond Hill, NY1053996587

Common questions

What is Feliks Chechelniker, MD's NPI number?

Feliks Chechelniker, MD's National Provider Identifier (NPI) is 1558381491, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Feliks Chechelniker, MD located?

The NPPES record lists a practice address at 312 Neptune Ave, Brooklyn, NY, 11235. Phone: (718) 934-7593. Providers update this record themselves, so call before visiting.

How can I verify Feliks Chechelniker, MD's license?

NPPES lists New York license number 236690, 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 Feliks Chechelniker, MD prescribe under Medicare Part D?

In 2024, Feliks Chechelniker, MD had 3,145 Medicare Part D claims for 87 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Feliks Chechelniker, MD's MIPS final score?

The 2023 MIPS final score is 72.1 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.