What is Marshall Rowen's NPI number?

Marshall Rowen's National Provider Identifier (NPI) is 1497754907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Marshall Rowen's specialty?

Marshall Rowen is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).

Where is Marshall Rowen located?

Marshall Rowen's practice location on file with NPPES is 1201 W La Veta Ave, Orange, CA 92868-4213.

What is Marshall Rowen's phone number?

The practice phone number listed in the NPPES registry for Marshall Rowen is (714) 771-8370.

Is Marshall Rowen's NPI active?

Yes — Marshall Rowen's NPI (1497754907) is active in the NPPES registry as of the last update on 2008-08-15.

IndividualActive

Marshall Rowen, M.D.

NPI 1497754907 · Diagnostic Radiology Physician · Orange, CA

Marshall Rowen, M.D. is a Diagnostic Radiology Physician provider in Orange, CA (NPI 1497754907).

Provider details

NPI number: 1497754907
Entity type: Individual
Primary specialty: Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: A16470 (CA)

Specialties & taxonomies

Diagnostic Radiology PhysicianPrimary2085R0202XLicense A16470 (CA)
Allopathic & Osteopathic Physicians

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

1201 W La Veta Ave

Ste. 102

Orange, CA 92868-4213

Phone: (714) 771-8370

Fax: (714) 771-8374

Street-level locationGet directions

More CA providers

Mailing address

Po Box 14005

Orange, CA 92863-1405

Enumerated: 2005-07-18
Last updated: 2008-08-15

Frequently asked questions

What is Marshall Rowen's NPI number?: Marshall Rowen's National Provider Identifier (NPI) is 1497754907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Marshall Rowen's specialty?: Marshall Rowen is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
Where is Marshall Rowen located?: Marshall Rowen's practice location on file with NPPES is 1201 W La Veta Ave, Orange, CA 92868-4213.
What is Marshall Rowen's phone number?: The practice phone number listed in the NPPES registry for Marshall Rowen is (714) 771-8370.
Is Marshall Rowen's NPI active?: Yes — Marshall Rowen's NPI (1497754907) is active in the NPPES registry as of the last update on 2008-08-15.

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