Nathan Chang, NP
NPI 1255721239 · Nurse Practitioner · Palo Alto, CA
Nathan Chang, NP is a Nurse Practitioner provider in Palo Alto, CA (NPI 1255721239).
Provider details
- NPI number
- 1255721239
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 43 430872 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 601 W 164th St Apt 22New York, NY 10032-4804Phone: (714) 686-6614
Registry dates
- Enumerated
- 2015-01-29
- Last updated
- 2023-05-24
- Certified
- 2023-05-24
Frequently asked questions
- What is Nathan Chang's NPI number?
- Nathan Chang's National Provider Identifier (NPI) is 1255721239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Chang's specialty?
- Nathan Chang is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nathan Chang located?
- Nathan Chang's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Nathan Chang's phone number?
- The practice phone number listed in the NPPES registry for Nathan Chang is (650) 497-8000.
- Is Nathan Chang's NPI active?
- Yes — Nathan Chang's NPI (1255721239) is active in the NPPES registry as of the last update on 2023-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.