Dr. John C. Mergo, DO
- MIPS score, 2024
- 83
- Hospital affiliations
- 1
- Industry payments
- $284
- Medical group
- 1
- State license
- 1
- Practice address
- 272 Hospital Road, Chillicothe, OH 45601
- Practice phone
- Call (740) 779-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mergo's 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 C. Mergo is an anesthesiologist in Chillicothe, Ohio
Dr. Mergo practices at Adena Regional Medical Center in Chillicothe, Ohio, part of Adena Health System.
Dr. Mergo's NPI, 1952301749, was assigned on July 22, 2005. Dr. Mergo graduated from Midwestern University, Chicago College of Osteopathic Med in 1989. Dr. Mergo holds Ohio license 34005802.
- NPI
- 1952301749NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042291452
- NPI enumeration date
- July 22, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (740) 779-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John C. Mergo practices at Adena Regional Medical Center in Chillicothe, Ohio
Dr. Mergo's primary practice is Adena Regional Medical Center, at 272 Hospital Road, Chillicothe, OH 45601 in Ross County. The practice phone is (740) 779-7500.
- Adena Regional Medical Center272 Hospital Road, Chillicothe, OH 45601 · Ross CountyPhone(740) 779-7500
Source: Dmand AI Affiliation Data
Dr. John C. Mergo is affiliated with 1 site of care and 1 medical group
Dr. Mergo's primary practice is Adena Regional Medical Center in Chillicothe, Ohio, part of Adena Health System. The medical group on file is Adena Health System.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John C. Mergo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mergo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adena Regional Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Adena Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John C. Mergo is one of 1,673 anesthesiologists in Ohio
Anesthesiology is Dr. Mergo's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Mergo is licensed in Ohio.
Specialties and state licenses
- Anesthesiology, OhioPrimary
Anesthesiologists near Dr. Mergo
Counts of anesthesiologists 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 C. Mergo's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Mergo's median patient age at 58, with 55% women.
Dr. Mergo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. John C. Mergo scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Mergo for performance year 2024, reported as part of a group. Dr. Mergo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mergo's MIPS scores, performance year 2024
- 83of 100Final score
- 64.4of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
Dr. John C. Mergo received $284 in industry payments from 2016 to 2025
CMS Open Payments shows 16 general payments to Dr. Mergo from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $87.
General payments to Dr. Mergo by program year, 2016 to 2025
Companies that paid Dr. Mergo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John C. Mergo graduated from Midwestern University, Chicago College of Osteopathic Med
Dr. Mergo graduated from Midwestern University, Chicago College of Osteopathic Med in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John C. Mergo'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 C. Mergo
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 C. Mergo's NPI number?
Dr. John C. Mergo's NPI number is 1952301749. It was assigned on July 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John C. Mergo?
Dr. John C. Mergo is an anesthesiologist in Chillicothe, Ohio. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John C. Mergo practice?
Dr. Mergo practices at 272 Hospital Road, Chillicothe, OH 45601. Dr. Mergo's primary practice is Adena Regional Medical Center in Chillicothe, Ohio, part of Adena Health System.
What is Dr. John C. Mergo's office phone number?
The practice phone on file for Dr. Mergo is (740) 779-7500.
What is Dr. John C. Mergo's medical license number?
Dr. Mergo holds Ohio license 34005802.
Which hospitals is Dr. John C. Mergo affiliated with?
Dr. Mergo practices at Adena Regional Medical Center in Chillicothe, Ohio.
What medical group is Dr. John C. Mergo part of?
Dr. Mergo is linked to Adena Health System.
Does Dr. John C. Mergo accept Medicare?
Yes. CMS lists Dr. Mergo as accepting Medicare assignment.
What is Dr. John C. Mergo's MIPS score?
Dr. Mergo's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
Where did Dr. John C. Mergo go to medical school?
Dr. Mergo graduated from Midwestern University, Chicago College of Osteopathic Med in 1989.
Has Dr. John C. Mergo received payments from drug or device companies?
CMS Open Payments shows $284 in general payments to Dr. Mergo from 8 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. John C. Mergo been practicing?
Dr. Mergo graduated from medical school in 1989, 37 years ago.
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