What is Grant Walker's NPI number?

Grant Walker's National Provider Identifier (NPI) is 1700923018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Grant Walker's specialty?

Grant Walker is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery of the Spine Physician (Allopathic & Osteopathic Physicians).

Where is Grant Walker located?

Grant Walker's practice location on file with NPPES is 3798 Janes Rd Ste 6, Arcata, CA 95521-4745.

What is Grant Walker's phone number?

The practice phone number listed in the NPPES registry for Grant Walker is (208) 785-4665.

Is Grant Walker's NPI active?

Yes — Grant Walker's NPI (1700923018) is active in the NPPES registry as of the last update on 2020-07-21.

IndividualActive

Grant Walker, MD

NPI 1700923018 · Orthopaedic Surgery of the Spine Physician · Arcata, CA

Grant Walker, MD is a Orthopaedic Surgery of the Spine Physician provider in Arcata, CA (NPI 1700923018).

Provider details

NPI number: 1700923018
Entity type: Individual
Primary specialty: Orthopaedic Surgery of the Spine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 11112 (MT)

Specialties & taxonomies

Orthopaedic Surgery of the Spine PhysicianPrimary207XS0117XLicense M8790 (ID)
Allopathic & Osteopathic Physicians
Orthopaedic Surgery of the Spine Physician207XS0117XLicense 11112 (MT)
Allopathic & Osteopathic Physicians
Orthopaedic Surgery of the Spine Physician207XS0117XLicense 7587A (WY)
Allopathic & Osteopathic Physicians
Orthopaedic Surgery of the Spine Physician207XS0117XLicense 30958 (AZ)
Allopathic & Osteopathic Physicians
Orthopaedic Surgery of the Spine Physician207XS0117XLicense DR32874 (CO)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

3798 Janes Rd Ste 6

Arcata, CA 95521-4745

Phone: (208) 785-4665

Fax: (208) 785-2199

Street-level locationGet directions

More CA providers

Mailing address

5880 S Hospital Dr

Globe, AZ 85501-9447

Enumerated: 2007-01-30
Last updated: 2020-07-21
Certified: 2020-07-21

Frequently asked questions

What is Grant Walker's NPI number?: Grant Walker's National Provider Identifier (NPI) is 1700923018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Grant Walker's specialty?: Grant Walker is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery of the Spine Physician (Allopathic & Osteopathic Physicians).
Where is Grant Walker located?: Grant Walker's practice location on file with NPPES is 3798 Janes Rd Ste 6, Arcata, CA 95521-4745.
What is Grant Walker's phone number?: The practice phone number listed in the NPPES registry for Grant Walker is (208) 785-4665.
Is Grant Walker's NPI active?: Yes — Grant Walker's NPI (1700923018) is active in the NPPES registry as of the last update on 2020-07-21.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.