What is Jessica Gregg's NPI number?

Jessica Gregg's National Provider Identifier (NPI) is 1447265939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jessica Gregg's specialty?

Jessica Gregg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Jessica Gregg located?

Jessica Gregg's practice location on file with NPPES is 727 W Burnside St, Portland, OR 97209-3514.

What is Jessica Gregg's phone number?

The practice phone number listed in the NPPES registry for Jessica Gregg is (503) 228-4533.

Does Jessica Gregg accept Medicare?

Jessica Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Jessica Gregg's NPI active?

Yes — Jessica Gregg's NPI (1447265939) is active in the NPPES registry as of the last update on 2025-02-06.

IndividualActiveAccepts Medicare

Jessica Gregg, MD

NPI 1447265939 · Internal Medicine Physician · Portland, OR

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Jessica Gregg, MD is a Internal Medicine Physician provider in Portland, OR (NPI 1447265939).

Provider details

NPI number: 1447265939
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: MD23841 (OR)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense MD23841 (OR)
Allopathic & Osteopathic Physicians
Addiction Medicine (Internal Medicine) Physician207RA0401XLicense MD23841 (OR)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(100/100 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
4 documented practice locations

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

727 W Burnside St

Portland, OR 97209-3514

Phone: (503) 228-4533

Approximate (ZIP-level) locationGet directions

More OR providers

Mailing address

232 Nw 6th Ave

Portland, OR 97209-3609

Additional practice locations (3)

12121 E Burnside St
Portland, OR 97216-3737
Phone: (971) 361-7700
2545 Ne Flanders St
Portland, OR 97232-3139
Phone: (503) 235-3546
1535 N Williams Ave
Portland, OR 97227-1885
Phone: (503) 238-2067

Enumerated: 2006-07-31
Last updated: 2025-02-06
Certified: 2025-02-06

Frequently asked questions

What is Jessica Gregg's NPI number?: Jessica Gregg's National Provider Identifier (NPI) is 1447265939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Jessica Gregg's specialty?: Jessica Gregg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Jessica Gregg located?: Jessica Gregg's practice location on file with NPPES is 727 W Burnside St, Portland, OR 97209-3514.
What is Jessica Gregg's phone number?: The practice phone number listed in the NPPES registry for Jessica Gregg is (503) 228-4533.
Does Jessica Gregg accept Medicare?: Jessica Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Jessica Gregg's NPI active?: Yes — Jessica Gregg's NPI (1447265939) is active in the NPPES registry as of the last update on 2025-02-06.

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