Doctor profile · Federal record
Dr. John Mayfield, Doctor of Chiropract
Chiropractor (CMS: Chiropractic) · Grass Valley, CA
- NPI 1255366381
- 54 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
565 Brunswick Road, Suite 12
Grass Valley, CA 95945
(530) 272-8839
fax (530) 272-9057
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1972 — 54 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- California #DC10905
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255366381. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
194
Distinct HCPCS
1
Medicare allowed
$7,555
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 194 | 32 | $39 |
In context: peer comparison
Among 8 peers in Grass Valley Chiropractor, average services per provider: 527. This provider delivers 0.4× the peer median.Frequently asked questions
What is Dr. John Mayfield's medical specialty?
Dr. John Mayfield practices Chiropractor in Grass Valley, CA.
Where does Dr. John Mayfield practice?
Dr. John Mayfield practices at 565 Brunswick Road, Grass Valley, CA 95945. Office phone: 5302728839.
What is Dr. John Mayfield's NPI?
Dr. John Mayfield's National Provider Identifier (NPI) is 1255366381, issued by NPPES.
Does Dr. John Mayfield accept Medicare assignment?
Dr. John Mayfield does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. John Mayfield commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.