What is Linda Isaacs's NPI number?

Linda Isaacs's National Provider Identifier (NPI) is 1629079439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Linda Isaacs's specialty?

Linda Isaacs is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Linda Isaacs located?

Linda Isaacs's practice location on file with NPPES is 6700 Menchaca Road, Austin, TX 78745.

What is Linda Isaacs's phone number?

The practice phone number listed in the NPPES registry for Linda Isaacs is (737) 208-0831.

Is Linda Isaacs's NPI active?

Yes — Linda Isaacs's NPI (1629079439) is active in the NPPES registry as of the last update on 2025-08-29.

IndividualActive

Linda Isaacs, M.D.

NPI 1629079439 · Internal Medicine Physician · Austin, TX

Linda Isaacs, M.D. is a Internal Medicine Physician provider in Austin, TX (NPI 1629079439).

Provider details

NPI number: 1629079439
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: Yes
License: R0590 (TX)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 178484 (NY)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense R0590 (TX)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(100/100 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
3 documented practice locations

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

6700 Menchaca Road

Building 3

Austin, TX 78745

Phone: (737) 208-0831

Fax: (737) 242-8223

Street-level locationGet directions

More TX providers

Mailing address

6800 Westgate Blvd

Austin, TX 78745

Additional practice locations (2)

36 E 36th St
Suite 1a
New York, NY 10016-3463
Phone: (212) 213-3337
Fax: (212) 213-3414
172 W 77th St Apt 1c
New York, NY 10024-6985
Phone: (737) 208-0831
Fax: (737) 242-8223

Enumerated: 2005-08-02
Last updated: 2025-08-29

Frequently asked questions

What is Linda Isaacs's NPI number?: Linda Isaacs's National Provider Identifier (NPI) is 1629079439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Linda Isaacs's specialty?: Linda Isaacs is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Linda Isaacs located?: Linda Isaacs's practice location on file with NPPES is 6700 Menchaca Road, Austin, TX 78745.
What is Linda Isaacs's phone number?: The practice phone number listed in the NPPES registry for Linda Isaacs is (737) 208-0831.
Is Linda Isaacs's NPI active?: Yes — Linda Isaacs's NPI (1629079439) is active in the NPPES registry as of the last update on 2025-08-29.

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