What is Clifford Anderson's NPI number?

Clifford Anderson's National Provider Identifier (NPI) is 1013913409, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Clifford Anderson's specialty?

Clifford Anderson is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).

Where is Clifford Anderson located?

Clifford Anderson's practice location on file with NPPES is 233 Nw 16th Ave, Portland, OR 97209-2630.

What is Clifford Anderson's phone number?

The practice phone number listed in the NPPES registry for Clifford Anderson is (503) 223-6480.

Is Clifford Anderson's NPI active?

Yes — Clifford Anderson's NPI (1013913409) is active in the NPPES registry as of the last update on 2008-08-22.

IndividualActive

Clifford Anderson, MD

NPI 1013913409 · Allergy & Immunology Physician · Portland, OR

Clifford Anderson, MD is a Allergy & Immunology Physician provider in Portland, OR (NPI 1013913409).

Provider details

NPI number: 1013913409
Entity type: Individual
Primary specialty: Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: MD09504 (OR)

Practice location

233 Nw 16th Ave

Portland, OR 97209-2630

Phone: (503) 223-6480

Fax: (503) 294-1868

Street-level locationGet directions

More OR providers

Mailing address

233 Nw 16th Ave

Portland, OR 97209-2630

Specialties & taxonomies

Allergy & Immunology PhysicianPrimary207K00000XLicense MD09504 (OR)
Allopathic & Osteopathic Physicians
Allergy & Immunology Physician207K00000XLicense MD00019556 (WA)
Allopathic & Osteopathic Physicians
Rheumatology Physician207RR0500XLicense MD09504 (OR)
Allopathic & Osteopathic Physicians
Allergy Physician207KA0200XLicense MD09504 (OR)
Allopathic & Osteopathic Physicians
Allergy Physician207KA0200XLicense MD00019556 (WA)
Allopathic & Osteopathic Physicians
Clinical & Laboratory Immunology (Allergy & Immunology) Physician207KI0005XLicense MD09504 (OR)
Allopathic & Osteopathic Physicians
Clinical & Laboratory Immunology (Allergy & Immunology) Physician207KI0005XLicense MD00019556 (WA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(92/100 index)

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

Registry tenure33% of score
21 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
1 documented practice location
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.

$124 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.

Enumerated: 2005-06-22
Last updated: 2008-08-22

Frequently asked questions

What is Clifford Anderson's NPI number?: Clifford Anderson's National Provider Identifier (NPI) is 1013913409, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Clifford Anderson's specialty?: Clifford Anderson is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
Where is Clifford Anderson located?: Clifford Anderson's practice location on file with NPPES is 233 Nw 16th Ave, Portland, OR 97209-2630.
What is Clifford Anderson's phone number?: The practice phone number listed in the NPPES registry for Clifford Anderson is (503) 223-6480.
Is Clifford Anderson's NPI active?: Yes — Clifford Anderson's NPI (1013913409) is active in the NPPES registry as of the last update on 2008-08-22.

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

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Transparency — industry payments

Frequently asked questions