John Mergo, DO
Anesthesiology Physician · Chillicothe, OH
John Mergo, DO is an anesthesiology physician with a practice address in Chillicothe, Ohio, and NPI 1952301749, issued on Jul 22, 2005. Check the license (Ohio 34005802, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- John Mergo
- Credential
- DO
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 34005802 OH
Self-reported in NPPES; status is on the state search - Practice location
- 272 Hospital RD, Chillicothe, OH 45601
- Phone
- (513) 672-3309
- Enumerated
- Jul 22, 2005
- Record last updated
- Apr 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (513) 672-3323
- Medicaid ID
- 0956845 OH
- Medicare enrollment
- Enrolled (PECOS I20080618000791); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 1989
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,068 in Ohio → Look up another NPI →
Also registered at 272 Hospital RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Helen AndersonPharmacist1609222736
Verify John Mergo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34005802Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $87.61
4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Adena Medical Group LLCChillicothe, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Mergo among 2,068 anesthesiology physician records in Ohio
John Mergo, DO is one of 2,068 anesthesiology physician records with a practice address in Ohio. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1989 · median 2005 among the 1,382 with a school on file
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Ohio
There are 2,068 anesthesiology physician records in Ohio.
All 2,068 in Ohio → Every provider in Chillicothe → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Vaughn Florian, MDChillicothe, OH 456011104447200
- Anthony Freeman, DOChillicothe, OH 456011124028923
- Jacqueline Graham, M.D.Chillicothe, OH 456011013131101
- Robert Lee, MDChillicothe, OH 456011396745196
- Samuel Morgos, M.D.Chillicothe, OH 456011144364076
- Lauren Petrovich, DOChillicothe, OH 456011508211434
- Jenifer Schmidt, DOChillicothe, OH 456011386644185
- Tarun Tandon, MDChillicothe, OH 456011063433241
Common questions
What is John Mergo, DO's NPI number?
John Mergo, DO's National Provider Identifier (NPI) is 1952301749, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Mergo, DO located?
The NPPES record lists a practice address at 272 Hospital RD, Chillicothe, OH, 45601. Phone: (513) 672-3309. Providers update this record themselves, so call before visiting.
How can I verify John Mergo, DO's license?
NPPES lists Ohio license number 34005802, 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.
What is John Mergo, DO's MIPS final score?
The 2023 MIPS final score is 83.3 of 100. 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.