John Nadas, M.D.
NPI 1104922798 · Psychiatry Physician · Canton, OH
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nadas, M.D. is a Psychiatry Physician provider in Canton, OH (NPI 1104922798).
Provider details
- NPI number
- 1104922798
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35-050424 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
77 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 42 | $47 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 35 | $124 |
Typical Medicare-allowed amounts for these services range $47–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buspirone Hcl | 55 | — |
| Trazodone Hcl | 51 | 12 |
| Duloxetine Hcl | 28 | — |
| Mirtazapine | 27 | — |
| Paroxetine Hcl | 27 | — |
| Lamotrigine | 23 | — |
| Gabapentin | 22 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-15
- Last updated
- 2007-07-09
Frequently asked questions
- What is John Nadas's NPI number?
- John Nadas's National Provider Identifier (NPI) is 1104922798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nadas's specialty?
- John Nadas is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Nadas located?
- John Nadas's practice location on file with NPPES is 1330 Mercy Dr Nw, Canton, OH 44708-2626.
- What is John Nadas's phone number?
- The practice phone number listed in the NPPES registry for John Nadas is (330) 489-1495.
- Does John Nadas accept Medicare?
- John Nadas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nadas's NPI active?
- Yes — John Nadas's NPI (1104922798) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.