John L. Hertzer, MD
Psychiatry Physician · Cleveland, OH
John L. Hertzer, MD is a psychiatry physician with a practice address in Cleveland, Ohio, and NPI 1104885235, issued on Mar 18, 2006. Check the license (Ohio 35072227, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- John L. Hertzer
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 35072227 OH
Self-reported in NPPES; status is on the state search - Practice location
- 11100 Euclid Ave, Cleveland, OH 44106
- Phone
- (216) 844-3881
- Enumerated
- Mar 18, 2006
- Record last updated
- Jan 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (216) 844-5883
- Medicaid IDs
- 2203930 OH
0943457 OH - Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,587 in Ohio → Look up another NPI →
Also registered at 11100 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John L. Hertzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35072227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average psychiatry physician in 2024
99 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Quetiapine Fumarate24 claims
- Risperidone22 claims
- Dextroamphetamine-Amphet Er12 claims
- Dextroamphetamine-Amphetamine12 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): 79.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
John L. Hertzer among 1,587 psychiatry physician records in Ohio
John L. Hertzer, 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 updated2021 · 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).
Psychiatry Physician providers in Ohio
There are 1,587 psychiatry physician records in Ohio.
All 1,587 in Ohio → Every provider in Cleveland → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- David Agle, MDCleveland, OH 441061841216322
- Joseph Calabrese, MDCleveland, OH 441061891715298
- Javier Galvez, MDCleveland, OH 441061184618795
- Margaret Kotz, DOCleveland, OH 441061023038338
- Richard Lightbody, MDCleveland Hts, OH 441061194707174
- Joseph Locala, MDCleveland, OH 441061205892759
- Monica Macdougall, MDCleveland, OH 441061427078757
- Matig Mavissakalian, MDCleveland, OH 441061184640534
Common questions
What is John L. Hertzer, MD's NPI number?
John L. Hertzer, MD's National Provider Identifier (NPI) is 1104885235, issued on Mar 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John L. Hertzer, MD located?
The NPPES record lists a practice address at 11100 Euclid Ave, Cleveland, OH, 44106. Phone: (216) 844-3881. Providers update this record themselves, so call before visiting.
How can I verify John L. Hertzer, MD's license?
NPPES lists Ohio license number 35072227, 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 John L. Hertzer, MD prescribe under Medicare Part D?
In 2024, John L. Hertzer, MD had 99 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is John L. Hertzer, MD's MIPS final score?
The 2023 MIPS final score is 79.5 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.