NPPES file of Aug 9, 2026

Tatyana Kemarskaya, M.D.

Geriatric Medicine (Internal Medicine) Physician · Allentown, PA

Tatyana Kemarskaya, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Allentown, Pennsylvania, and NPI 1851371785, issued on Jan 18, 2006. Check the license (Pennsylvania MD419698, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1851371785
Name
Tatyana Kemarskaya
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
MD419698 PA
MA07445900 NJ
Self-reported in NPPES; status is on the state search
Practice location
1627 Chew St, Allentown, PA 18102
Phone
(610) 969-3390
Enumerated
Jan 18, 2006
Record last updated
Jul 1, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(610) 969-3393
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1627 Chew St

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

  1. Alexis Alexander, DMDDentist1083172589
  2. Ashley Bonney, MDObstetrics & Gynecology Physician1083453591
  3. Jenna Bower, LPCMental Health Counselor1558975763
  4. Katelyn Brown, CRNPPediatric Nurse Practitioner1942683909
  5. Natalie Burkert, MDStudent in an Organized Health Care Education/Training Program1295526176
  6. Emily Butler, DOInternal Medicine Physician1700378718

Verify Tatyana Kemarskaya in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD419698
    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 Pennsylvania license search

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100% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

21 Medicare Part D claims, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Tatyana Kemarskaya21
  2. Specialty average4,246

Most prescribed

  1. Lansoprazole13 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.

Tatyana Kemarskaya among 228 geriatric medicine (internal medicine) physician records in Pennsylvania

Tatyana Kemarskaya, M.D. is one of 228 geriatric medicine (internal medicine) physician records with a practice address in Pennsylvania. 72% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 38% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2019 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Pennsylvania

There are 228 geriatric medicine (internal medicine) physician records in Pennsylvania.

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Paula Jacobus, M.D.Allentown, PA 181021538193982
  2. Emilie Juin-Baptiste, M.DAllentown, PA 181021669883765
  3. Sunitha Potluri, MDAllentown, PA 181021437321353
  4. Russell Rentler, MDAllentown, PA 181021518996255
  5. Eileen Simak, D.O.Allentown, PA 181021073516670
  6. Neti Vora, MDAllentown, PA 181021265695647
  7. Caroline Shedlock, M.D.Allentown, PA 181031871521039
  8. Gene Ginsberg, MDAllentown, PA 181041831141787

Common questions

What is Tatyana Kemarskaya, M.D.'s NPI number?

Tatyana Kemarskaya, M.D.'s National Provider Identifier (NPI) is 1851371785, issued on Jan 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tatyana Kemarskaya, M.D. located?

The NPPES record lists a practice address at 1627 Chew St, Allentown, PA, 18102. Phone: (610) 969-3390. Providers update this record themselves, so call before visiting.

How can I verify Tatyana Kemarskaya, M.D.'s license?

NPPES lists Pennsylvania license number MD419698, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tatyana Kemarskaya, M.D. prescribe under Medicare Part D?

In 2024, Tatyana Kemarskaya, M.D. had 21 Medicare Part D claims; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.

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.