Doctor profile · Federal record
Dr. Calvin John, MD
Family Medicine Physician · London, OH
- NPI 1750332862
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
210 N Main St
London, OH 431401115
(740) 852-1372 - Mailing address
-
4750 Hempstead Station Dr
Kettering, OH 454295164
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- January 17, 2013
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Ohio #35081241J
- Medicaid
- OH #2363580
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1750332862. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
94
Distinct HCPCS
2
Medicare allowed
$14,672
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 68 | 67 | $171 | |
99284 |
Emergency department visit with moderate level of medical decision making | 26 | 26 | $118 |
In context: peer comparison
Among 5 peers in London Family Medicine Physician, average services per provider: 90. This provider delivers 1.0× the peer median.Frequently asked questions
What is Dr. Calvin John's medical specialty?
Dr. Calvin John practices Family Medicine Physician in London, OH.
Where does Dr. Calvin John practice?
Dr. Calvin John practices at 210 N Main St, London, OH 431401115. Office phone: 7408521372.
What is Dr. Calvin John's NPI?
Dr. Calvin John's National Provider Identifier (NPI) is 1750332862, issued by NPPES.
What procedures does Dr. Calvin John commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.