Doctor profile · Federal record
Dr. Dennis Barker, D.C.
Chiropractor (CMS: Chiropractic) · Walnut Creek, CA
- NPI 1477640209
- 36 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1866 Tice Valley Blvd
Walnut Creek, CA 945952224
(925) 210-8000
fax (925) 935-0960
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 6, 2023
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- California #21640
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477640209. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
530
Distinct HCPCS
1
Medicare allowed
$16,524
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 530 | 61 | $31 |
In context: peer comparison
Among 11 peers in Walnut Creek Chiropractor, average services per provider: 424. This provider delivers 1.3× the peer median.Frequently asked questions
What is Dr. Dennis Barker's medical specialty?
Dr. Dennis Barker practices Chiropractor in Walnut Creek, CA.
Where does Dr. Dennis Barker practice?
Dr. Dennis Barker practices at 1866 Tice Valley Blvd, Walnut Creek, CA 945952224. Office phone: 9252108000.
What is Dr. Dennis Barker's NPI?
Dr. Dennis Barker's National Provider Identifier (NPI) is 1477640209, issued by NPPES.
Does Dr. Dennis Barker accept Medicare assignment?
Dr. Dennis Barker does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Dennis Barker commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.