NPPES file of Aug 9, 2026

Thomas B. Coss, RPA-C

Physician Assistant · Elmira, NY

Thomas B. Coss, RPA-C is a physician assistant with a practice address in Elmira, New York, and NPI 1356440473, issued on Sep 22, 2006. Check the license (New York 005409, as entered in NPPES) with the New York board that licenses this profession; 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
1356440473
Name
Thomas B. Coss
Credential
RPA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
005409 NY
Self-reported in NPPES; status is on the state search
Practice location
200 Madison Ave FL 3, Elmira, NY 14901
Phone
(607) 734-1581
Enumerated
Sep 22, 2006
Record last updated
Nov 24, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(607) 734-0972
Medicaid ID
01635827 NY
Medicare enrollment
Enrolled (PECOS I20040804000456); 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 200 Madison Ave FL 3

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

  1. Shilpa Akula, MDInternal Medicine Physician1578003430
  2. Melissa Brand, FNPFamily Nurse Practitioner1669035325
  3. Jerod Buell, DOFamily Medicine Physician1295230514
  4. Winifred HinmanRegistered Nurse1326568098
  5. Keith Parker, MDInternal Medicine Physician1114020237
  6. Louis Riley, MDNephrology Physician1720139983

Verify Thomas B. Coss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 005409
    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
Find 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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16.3 times the Medicare Part D claims of the average physician assistant in 2024

13,505 Medicare Part D claims for 789 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 560 claims were for opioids.

  1. Thomas Coss13,505
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium930 claims
  2. Amlodipine Besylate553 claims
  3. Omeprazole511 claims
  4. Metoprolol Succinate426 claims
  5. Losartan Potassium376 claims
  6. Ramipril351 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): 81.3 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 score61.8
  2. Costout of 100 · 30%65.2
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $96.40

5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Coss$96.40
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Arnot Ogden Medical CenterElmira, NY · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Thomas B. Coss among 15,555 physician assistant records in New York

Thomas B. Coss, RPA-C is one of 15,555 physician assistant records with a practice address in New York. 74% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 87% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated1995 · median 2018 among the 8,158 with a school on file
  • Record last updated2020 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 physician assistant records list a practice address in Elmira

They are 31 of the 1,746 NPPES records with a practice address in Elmira, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Alison Eason, PAElmira, NY 149011386119519
  2. Randy Huntington, PA-CElmira, NY 149011376837708
  3. Denis Kingsley, PAElmira, NY 149011366540387
  4. Benjamin Oakes, RPA-CElmira, NY 149011659582922
  5. Samuel Russell, RPACElmira, NY 149011902907892
  6. Tangneka Nguyen, PA-CElmira, NY 149031649155045
  7. Mara Skordynski, PA-CElmira, NY 149031356937825
  8. Stephanie Busch, RPA-CElmira, NY 149041093811291

Common questions

What is Thomas B. Coss, RPA-C's NPI number?

Thomas B. Coss, RPA-C's National Provider Identifier (NPI) is 1356440473, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas B. Coss, RPA-C located?

The NPPES record lists a practice address at 200 Madison Ave FL 3, Elmira, NY, 14901. Phone: (607) 734-1581. Providers update this record themselves, so call before visiting.

How can I verify Thomas B. Coss, RPA-C's license?

NPPES lists New York license number 005409, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas B. Coss, RPA-C prescribe under Medicare Part D?

In 2024, Thomas B. Coss, RPA-C had 13,505 Medicare Part D claims for 789 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Thomas B. Coss, RPA-C's MIPS final score?

The 2023 MIPS final score is 81.3 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.