NPPES file of Aug 9, 2026

Nicholas Cassis, M.D.

Endocrinology, Diabetes & Metabolism Physician · Charleston, WV

Nicholas Cassis, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Charleston, West Virginia, and NPI 1063523512, issued on Aug 31, 2006. Check the license (West Virginia 11251, as entered in NPPES) on the West Virginia Board of Medicine; 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
1063523512
Name
Nicholas Cassis
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
11251 WV
Self-reported in NPPES; status is on the state search
Practice location
415 Morris St, Charleston, WV 25301
Phone
(304) 345-6303
Enumerated
Aug 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(304) 345-6305
Medicare enrollment
Enrolled (PECOS I20090226000533); accepts Medicare assignment
Medical or professional school
West Virginia University School Of Medicine, 1979
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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8 nearest endocrinology, diabetes & metabolism physician records → All 63 in West Virginia → Look up another NPI →

Also registered at 415 Morris St

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

  1. Shadi Abu-Halimah, MDVascular Surgery Physician1144415290
  2. Anosh Akbar, DOStudent in an Organized Health Care Education/Training Program1699566885
  3. Natalie Allen, FNP-BCFamily Nurse Practitioner1518210046
  4. Constantino Amores, M.D.Neurological Surgery Physician1174587646
  5. Patrick Anderson, PA-CPhysician Assistant1356306369
  6. Frederick Armbrust, M.D.Neurological Surgery Physician1518921048

Verify Nicholas Cassis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWest Virginia Board of Medicine
    Search for license 11251    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 West Virginia license search

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45% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

1,452 Medicare Part D claims for 325 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 58% of claims.

  1. Nicholas Cassis1,452
  2. Specialty average2,630

Most prescribed

  1. Synthroid543 claims
  2. Levothyroxine Sodium219 claims
  3. Metformin Hcl67 claims
  4. Alendronate Sodium44 claims
  5. Ozempic33 claims
  6. Atorvastatin Calcium32 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.

Industry payments in 2024: $179.23

6 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nicholas Cassis$179.23
  2. Specialty average$5,742.15

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

Nicholas Cassis among 63 endocrinology, diabetes & metabolism physician records in West Virginia

Nicholas Cassis, M.D. is one of 63 endocrinology, diabetes & metabolism physician records with a practice address in West Virginia. 87% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 56% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1979 · median 2007 among the 45 with a school on file
  • Record last updated2007 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in West Virginia

There are 63 endocrinology, diabetes & metabolism physician records in West Virginia.

All 63 in West Virginia → Every provider in Charleston → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Glenn Crotty, MDCharleston, WV 253011528025640
  2. Brian Aprill, MDCharleston, WV 253041588659023
  3. Steven Artz, M.D.Charleston, WV 253041164529475
  4. Ilia Bernstein, M.D.Charleston, WV 253041881049146
  5. Waleed Butt, M.D.Charleston, WV 253041992231146
  6. Stephen Grubb, M.D.Charleston, WV 253041467462531
  7. Raghda Sahloul, M.D.Charleston, WV 253041962424903
  8. Lee Ann Skaff, MDCharleston, WV 253041225132681

Common questions

What is Nicholas Cassis, M.D.'s NPI number?

Nicholas Cassis, M.D.'s National Provider Identifier (NPI) is 1063523512, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Cassis, M.D. located?

The NPPES record lists a practice address at 415 Morris St, Charleston, WV, 25301. Phone: (304) 345-6303. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Cassis, M.D.'s license?

NPPES lists West Virginia license number 11251, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nicholas Cassis, M.D. prescribe under Medicare Part D?

In 2024, Nicholas Cassis, M.D. had 1,452 Medicare Part D claims for 325 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.