Dr. John A. Nadas, MD
- Medicare services, 2024
- 77
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 424
- Hospital affiliations
- 1
- Industry payments
- $173
- Practice address
- 1320 Mercy Drive NW, Canton, OH 44708
- Practice phone
- Call (330) 489-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nadas' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John A. Nadas is a psychiatrist in Canton, Ohio
Dr. Nadas practices at Cleveland Clinic Mercy Hospital in Canton, Ohio, part of The Cleveland Clinic Foundation.
Dr. Nadas' NPI, 1104922798, was assigned on September 15, 2006. Dr. Nadas graduated from Duke University School of Medicine in 1974. Dr. Nadas holds Ohio license 35-050424.
- NPI
- 1104922798NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638213952
- NPI enumeration date
- September 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (330) 489-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John A. Nadas practices at Cleveland Clinic Mercy Hospital in Canton, Ohio
Dr. Nadas' primary practice is Cleveland Clinic Mercy Hospital, at 1320 Mercy Drive NW, Canton, OH 44708 in Stark County. The practice phone is (330) 489-1111.
- Cleveland Clinic Mercy Hospital1320 Mercy Drive NW, Canton, OH 44708 · Stark CountyPhone(330) 489-1111
Source: Dmand AI Affiliation Data
Dr. John A. Nadas is affiliated with 2 sites of care and 1 medical group
Dr. Nadas' primary practice is Cleveland Clinic Mercy Hospital in Canton, Ohio, part of The Cleveland Clinic Foundation. The medical group on file is Cleveland Clinic Mercy Hospital. Dmand AI also links Dr. Nadas to 1 more group practice or clinic, named with a free account. Dr. Nadas' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John A. Nadas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nadas practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cleveland Clinic Mercy Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John A. Nadas is one of 1,227 psychiatrists in Ohio
Psychiatry is Dr. Nadas' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Nadas is licensed in Ohio.
Specialties and state licenses
- Psychiatry, OhioPrimary
Psychiatrists near Dr. Nadas
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John A. Nadas billed Medicare for 77 services in 2024
CMS data shows 77 Medicare services from Dr. Nadas across 2 procedure codes in 2024, for 35 Medicare patients. Medicare paid $5,018 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nadas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1112024: 7731%
Dr. Nadas compared with the Ohio median for psychiatrists, 2024
- Dr. Nadas
- Ohio median
- Medicare services
- 77vs 13141% below
- Medicare patients
- 35vs 4827% below
- Part D claims
- 318vs 25425% above
Medians across 1,320 psychiatrists in Ohio with Dmand AI profiles that report each measure.
Dr. Nadas' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John A. Nadas treated 35 Medicare patients in 2024, average age 69
CMS counts 35 Medicare patients who saw Dr. Nadas in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have anxiety, and 75% have depression. 46% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nadas' median patient age at 71, with 43% women.
Dr. Nadas' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nadas' Medicare patients by sex, 2024
- Women1543%
- Men2057%
Chronic conditions among Dr. Nadas' Medicare patients, 2024
- Anxiety75%
- Depression75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders75%
- Arthritis60%
- Ischemic heart disease60%
- Diabetes54%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nadas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John A. Nadas wrote 424 Medicare Part D claims in 2024
In 2024, Dr. Nadas wrote 424 Medicare Part D claims for 45 patients. 100% of them were for generic drugs. CMS names the drug for 318 of them, across 13 drugs with 11 or more claims each, at $4,935 in total drug cost. In 2023, CMS named 487 claims across 17 drugs.
Dr. Nadas' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nadas' Part D claims, 2024
- Antipsychotics, patients 65 and over7%31 of 424 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4872024: 31835%
Drugs named by CMS: 13 in 2024, 17 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John A. Nadas takes part in Medicare
Dr. Nadas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John A. Nadas received $173 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Nadas from 2 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $95.
Companies that paid Dr. Nadas the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John A. Nadas graduated from Duke University School of Medicine
Dr. Nadas graduated from Duke University School of Medicine in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John A. Nadas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John A. Nadas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John A. Nadas' NPI number?
Dr. John A. Nadas' NPI number is 1104922798. It was assigned on September 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John A. Nadas?
Dr. John A. Nadas is a psychiatrist in Canton, Ohio. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. John A. Nadas practice?
Dr. Nadas practices at 1320 Mercy Drive NW, Canton, OH 44708. Dr. Nadas' primary practice is Cleveland Clinic Mercy Hospital in Canton, Ohio, part of The Cleveland Clinic Foundation. Dmand AI also links Dr. Nadas to 1 group practice or clinic.
What is Dr. John A. Nadas' office phone number?
The practice phone on file for Dr. Nadas is (330) 489-1111.
What is Dr. John A. Nadas' medical license number?
Dr. Nadas holds Ohio license 35-050424.
Which hospitals is Dr. John A. Nadas affiliated with?
Dr. Nadas practices at Cleveland Clinic Mercy Hospital in Canton, Ohio.
What medical group is Dr. John A. Nadas part of?
Dr. Nadas is linked to Cleveland Clinic Mercy Hospital.
Does Dr. John A. Nadas accept Medicare?
Yes. CMS data shows Dr. Nadas billed Medicare for 77 services in 2024, and Dr. Nadas accepts Medicare assignment.
How many Medicare patients does Dr. John A. Nadas see?
CMS counts 35 Medicare patients who saw Dr. Nadas in 2024, with an average age of 69.
What services does Dr. John A. Nadas bill to Medicare?
In 2024, Dr. Nadas' most billed Medicare services were hospital inpatient care (99231) and hospital inpatient care (99222).
Show 4 more questionsShow fewer questions
Where did Dr. John A. Nadas go to medical school?
Dr. Nadas graduated from Duke University School of Medicine in 1974.
What drugs does Dr. John A. Nadas prescribe most?
In 2024 Medicare Part D data, Dr. Nadas' most prescribed drugs by claims were Buspirone HCl, Trazodone HCl and Duloxetine HCl.
Has Dr. John A. Nadas received payments from drug or device companies?
CMS Open Payments shows $173 in general payments to Dr. Nadas from 2 companies from 2016 to 2016. The largest total came from Amgen Inc.
How long has Dr. John A. Nadas been practicing?
Dr. Nadas graduated from medical school in 1974, 52 years ago.
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