Lillian Chang, PMHNP
NPI 1659866416 · Psychiatric/Mental Health Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lillian Chang, PMHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Phoenix, AZ (NPI 1659866416).
Provider details
- NPI number
- 1659866416
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP11303 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,183 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 501 | $61 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 457 | $67 |
| Psychotherapy With Evaluation and Management Visit, 1 Hour90838 | 95 | $89 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 76 | $149 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 37 | $53 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 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
Registry dates
- Enumerated
- 2018-06-25
- Last updated
- 2021-11-30
- Certified
- 2021-11-30
Frequently asked questions
- What is Lillian Chang's NPI number?
- Lillian Chang's National Provider Identifier (NPI) is 1659866416, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Chang's specialty?
- Lillian Chang is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lillian Chang located?
- Lillian Chang's practice location on file with NPPES is 2715 N 3rd St, Phoenix, AZ 85004-1106.
- What is Lillian Chang's phone number?
- The practice phone number listed in the NPPES registry for Lillian Chang is (602) 808-2800.
- Does Lillian Chang accept Medicare?
- Lillian Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lillian Chang's NPI active?
- Yes — Lillian Chang's NPI (1659866416) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.