Gregory Wallis, DO

Emergency Medicine Physician · Pullman, WA

Individual Active NPI

NPI number 1790308278

Practice location

835 SE Bishop Blvd
Pullman, WA 99163-5512
Phone
(509) 332-2541

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NPI record

NPI
1790308278
Entity type
Individual (Type 1)
Enumeration date
May 19, 2020
Last updated
August 5, 2025
Certified
August 5, 2025
Sole proprietor
No

Specialties & taxonomy codes

TaxonomyCodeLicenseState
Emergency Medicine Physician Primary 207P00000X OP61426716 WA

Mailing address

PO Box 95461
Cleveland, OH 44101-0033
Phone
(928) 669-2137

Other practice locations (1)

  • 12033 Agency Rd, Parker, AZ 85344-7718 · (289) 669-2137

About Dr. Wallis

Gregory Wallis, DO is a healthcare provider registered in the NPI registry with the primary taxonomy Emergency Medicine Physician (code 207P00000X). The practice location is 835 SE Bishop Blvd, Pullman, WA 99163-5512. The NPI number 1790308278 was assigned on May 19, 2020 and the record was last updated on August 5, 2025.

Dr. Wallis lists a license in the registry: #OP61426716 (WA) for Emergency Medicine Physician. License numbers are self-reported to NPPES; verify them with the state licensing board.

Frequently asked questions

What is the NPI number of Gregory Wallis, DO?

The NPI number is 1790308278.

What is the phone number of Dr. Wallis?

The phone number listed for the practice location is (509) 332-2541.

Where is Dr. Wallis located?

835 SE Bishop Blvd, Pullman, WA 99163-5512.

What is the taxonomy code for Dr. Wallis?

The primary taxonomy code is 207P00000X – Emergency Medicine Physician.

Is this information correct?

All details come from the public NPPES registry. Providers can update their record at nppes.cms.hhs.gov; changes appear here after the next weekly update.

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