Ryan Grattan, MD
NPI 1639669781 · Critical Care Medicine (Internal Medicine) Physician · Portland, OR
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Grattan, MD is a Critical Care Medicine (Internal Medicine) Physician provider in Portland, OR (NPI 1639669781).
Provider details
- NPI number
- 1639669781
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD219533 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3181 Sw Sam Jackson Park RdPortland, OR 97239-3011Phone: (503) 494-8311
Registry dates
- Enumerated
- 2018-05-15
- Last updated
- 2024-06-28
- Certified
- 2024-06-28
Frequently asked questions
- What is Ryan Grattan's NPI number?
- Ryan Grattan's National Provider Identifier (NPI) is 1639669781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Grattan's specialty?
- Ryan Grattan is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Grattan located?
- Ryan Grattan's practice location on file with NPPES is 3710 Sw US Veterans Hospital Rd, Portland, OR 97239-2964.
- What is Ryan Grattan's phone number?
- The practice phone number listed in the NPPES registry for Ryan Grattan is (503) 220-8262.
- Does Ryan Grattan accept Medicare?
- Ryan Grattan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Grattan's NPI active?
- Yes — Ryan Grattan's NPI (1639669781) is active in the NPPES registry as of the last update on 2024-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.