What is Don John's NPI number?

Don John's National Provider Identifier (NPI) is 1801232731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Don John's specialty?

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

Where is Don John located?

Don John's practice location on file with NPPES is 18321 Clark St, Tarzana, CA 91356-3501.

What is Don John's phone number?

The practice phone number listed in the NPPES registry for Don John is (818) 881-0800.

Does Don John accept Medicare?

Don John is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Don John's NPI active?

Yes — Don John's NPI (1801232731) is active in the NPPES registry as of the last update on 2020-07-01.

IndividualActiveAccepts Medicare

Don John, M.D.

NPI 1801232731 · Pediatrics Physician · Tarzana, CA

Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Don John, M.D. is a Pediatrics Physician provider in Tarzana, CA (NPI 1801232731).

Provider details

NPI number: 1801232731
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: A156442 (CA)

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense A156442 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(87/100 index)

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

Registry tenure38% of score
13 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

18321 Clark St

Tarzana, CA 91356-3501

Phone: (818) 881-0800

Street-level locationGet directions

More CA providers

Mailing address

3701 Wilshire Blvd Ste 600

Los Angeles, CA 90010-2814

Additional practice locations (2)

4650 W Sunset Blvd
Los Angeles, CA 90027
Phone: (888) 631-2452
Fax: (323) 361-9817
47 New Scotland Ave
Department of Pediatrics
Albany, NY 12208-3412
Phone: (518) 262-3095

Enumerated: 2013-05-19
Last updated: 2020-07-01
Certified: 2020-07-01

Frequently asked questions

What is Don John's NPI number?: Don John's National Provider Identifier (NPI) is 1801232731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Don John's specialty?: Don John is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Don John located?: Don John's practice location on file with NPPES is 18321 Clark St, Tarzana, CA 91356-3501.
What is Don John's phone number?: The practice phone number listed in the NPPES registry for Don John is (818) 881-0800.
Does Don John accept Medicare?: Don John is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Don John's NPI active?: Yes — Don John's NPI (1801232731) is active in the NPPES registry as of the last update on 2020-07-01.

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