Doctor profile · Federal record
Dr. John Guilford, D.C.
Chiropractor · Neurology Chiropractor · Castro Valley, CA
- NPI 1851302509
- 20 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
20406 Redwood RD, Ste B
Castro Valley, CA 945464317
(510) 886-7515
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- September 12, 2013
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- California #DC17974
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851302509. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
388
Distinct HCPCS
1
Medicare allowed
$18,210
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 388 | 35 | $47 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 265. This provider delivers 1.5× the peer median.Frequently asked questions
What is Dr. John Guilford's medical specialty?
Dr. John Guilford practices Chiropractor in Castro Valley, CA.
Where does Dr. John Guilford practice?
Dr. John Guilford practices at 20406 Redwood RD, Castro Valley, CA 945464317. Office phone: 5108867515.
What is Dr. John Guilford's NPI?
Dr. John Guilford's National Provider Identifier (NPI) is 1851302509, issued by NPPES.
What procedures does Dr. John Guilford commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.