What is William Marshall's NPI number?

William Marshall's National Provider Identifier (NPI) is 1508843871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Marshall's specialty?

William Marshall is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).

Where is William Marshall located?

William Marshall's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905.

What is William Marshall's phone number?

The practice phone number listed in the NPPES registry for William Marshall is (507) 284-2511.

Is William Marshall's NPI active?

Yes — William Marshall's NPI (1508843871) is active in the NPPES registry as of the last update on 2020-10-28.

IndividualActive

William Marshall, M.D.

NPI 1508843871 · Infectious Disease Physician · Rochester, MN

William Marshall, M.D. is a Infectious Disease Physician provider in Rochester, MN (NPI 1508843871).

Provider details

NPI number: 1508843871
Entity type: Individual
Primary specialty: Infectious Disease PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: ME121286 (FL)

Specialties & taxonomies

Infectious Disease PhysicianPrimary207RI0200XLicense 32189 (MN)
Allopathic & Osteopathic Physicians
Infectious Disease Physician207RI0200XLicense ME121286 (FL)
Allopathic & Osteopathic Physicians
Infectious Disease Physician207RI0200XLicense MD-30416 (IA)
Allopathic & Osteopathic Physicians
Infectious Disease Physician207RI0200XLicense 62127 (WI)
Allopathic & Osteopathic Physicians
Infectious Disease Physician207RI0200XLicense 34146 (MT)
Allopathic & Osteopathic Physicians
Infectious Disease Physician207RI0200XLicense 036.136918 (IL)

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
20 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

200 1st St Sw

Rochester, MN 55905

Phone: (507) 284-2511

Approximate (ZIP-level) locationGet directions

More MN providers

Mailing address

200 1st St Sw

Rochester, MN 55905-0001

Enumerated: 2005-12-28
Last updated: 2020-10-28
Certified: 2020-10-28

Frequently asked questions

What is William Marshall's NPI number?: William Marshall's National Provider Identifier (NPI) is 1508843871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Marshall's specialty?: William Marshall is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
Where is William Marshall located?: William Marshall's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905.
What is William Marshall's phone number?: The practice phone number listed in the NPPES registry for William Marshall is (507) 284-2511.
Is William Marshall's NPI active?: Yes — William Marshall's NPI (1508843871) is active in the NPPES registry as of the last update on 2020-10-28.

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