What is Martha Duffer's NPI number?

Martha Duffer's National Provider Identifier (NPI) is 1396920807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Martha Duffer's specialty?

Martha Duffer is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is Martha Duffer located?

Martha Duffer's practice location on file with NPPES is 504 W 17th St, Austin, TX 78701-1203.

What is Martha Duffer's phone number?

The practice phone number listed in the NPPES registry for Martha Duffer is (512) 476-5683.

Is Martha Duffer's NPI active?

Yes — Martha Duffer's NPI (1396920807) is active in the NPPES registry as of the last update on 2008-01-02.

IndividualActive

Martha Duffer, PSY.D.

NPI 1396920807 · Clinical Psychologist · Austin, TX

Martha Duffer, PSY.D. is a Clinical Psychologist provider in Austin, TX (NPI 1396920807).

Provider details

NPI number: 1396920807
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PSY.D.
Sex: Female
Sole proprietor: Yes
License: 25374 (TX)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 25374 (TX)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(88/100 index)

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

Registry tenure38% of score
18 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

504 W 17th St

Austin, TX 78701-1203

Phone: (512) 476-5683

Street-level locationGet directions

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Mailing address