What is Cal Zahn's NPI number?

Cal Zahn's National Provider Identifier (NPI) is 1801641501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Cal Zahn's specialty?

Cal Zahn is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Cal Zahn located?

Cal Zahn's practice location on file with NPPES is 1501 Red River St Fl 2, Austin, TX 78712-1845.

What is Cal Zahn's phone number?

The practice phone number listed in the NPPES registry for Cal Zahn is (512) 495-5555.

Is Cal Zahn's NPI active?

Yes — Cal Zahn's NPI (1801641501) is active in the NPPES registry as of the last update on 2024-04-17.

IndividualActive

Cal Zahn, MD

NPI 1801641501 · Pediatrics Physician · Austin, TX

Cal Zahn, MD is a Pediatrics Physician provider in Austin, TX (NPI 1801641501).

Provider details

NPI number: 1801641501
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: BP10088350 (TX)

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense BP10088350 (TX)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(57/100 index)

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

Registry tenure38% of score
2 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

1501 Red River St Fl 2

Austin, TX 78712-1845

Phone: (512) 495-5555

Street-level locationGet directions

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Mailing address