Mark J. Warren, MD
Psychiatry Physician · Beachwood, OH
Mark J. Warren, MD is a psychiatry physician with a practice address in Beachwood, Ohio, and NPI 1225078181, issued on Jun 8, 2006. Check the license (Ohio 35061599, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Mark J. Warren
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 35061599 OH
Self-reported in NPPES; status is on the state search - Practice location
- 23240 Chagrin Blvd, Beachwood, OH 44122
- Phone
- (216) 765-0500
- Enumerated
- Jun 8, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (216) 765-0521
- Medicaid ID
- 0979419 OH
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,587 in Ohio → Look up another NPI →
Also registered at 23240 Chagrin Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Javad Kashani, MDChild & Adolescent Psychiatry Physician1659344786
- Claire McCullough, LPC, NCCCounselor1609928597
- Minya Smith, MSSASocial Worker1619086295
- Charlotte Thomas, LSWClinical Social Worker1487845939
- Nancy Winkelman, MSSAClinical Social Worker1538389572
Verify Mark J. Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35061599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
20 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Mark J. Warren among 1,587 psychiatry physician records in Ohio
Mark J. Warren, MD is one of 1,587 psychiatry physician records with a practice address in Ohio. 70% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 55% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 49% of these records are
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 psychiatry physician records list a practice address in Beachwood
They are 39 of the 2,592 NPPES records with a practice address in Beachwood, and 1,587 psychiatry physician records in Ohio.
All 1,587 in Ohio → Every provider in Beachwood → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Robert Alcorn, M.D.Beachwood, OH 441221679548788
- Toni Carman, M.A, M.DBeachwood, OH 441221467499392
- James Cunagin, MDBeachwood, OH 441221609892140
- Larissa Elgudin, MDBeachwood, OH 441221629004387
- Antonia Fitzgerald, MDBeachwood, OH 441221255364576
- Judith Hirshman, M.D.Beachwood, OH 441221477552529
- Ruth MartinBeachwood, OH 441221609815810
- Noah Miller, MDPepper Pike, OH 441221083727663
Common questions
What is Mark J. Warren, MD's NPI number?
Mark J. Warren, MD's National Provider Identifier (NPI) is 1225078181, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Warren, MD located?
The NPPES record lists a practice address at 23240 Chagrin Blvd, Beachwood, OH, 44122. Phone: (216) 765-0500. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Warren, MD's license?
NPPES lists Ohio license number 35061599, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark J. Warren, MD prescribe under Medicare Part D?
In 2024, Mark J. Warren, MD had 20 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.