Joanne Lam, PMHNP-BC
NPI 1457043317 · Psychiatric/Mental Health Nurse Practitioner · Cerritos, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanne Lam, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Cerritos, CA (NPI 1457043317).
Provider details
- NPI number
- 1457043317
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- NP95025105 (CA)
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 tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
808 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 284 | $64 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 274 | $113 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 101 | $164 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 64 | $173 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 64 | $68 |
| Family Psychotherapy Without Patient, 50 Minutes90846 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Divalproex Sodium | 162 | 35 |
| Quetiapine Fumarate | 159 | 34 |
| Risperidone | 115 | 26 |
| Trazodone Hcl | 59 | 16 |
| Olanzapine | 55 | 11 |
| Buspirone Hcl | 51 | — |
| Mirtazapine | 49 | — |
| Divalproex Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-05-22
- Last updated
- 2023-05-22
- Certified
- 2023-05-20
Frequently asked questions
- What is Joanne Lam's NPI number?
- Joanne Lam's National Provider Identifier (NPI) is 1457043317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Lam's specialty?
- Joanne Lam is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joanne Lam located?
- Joanne Lam's practice location on file with NPPES is 10802 College Pl, Cerritos, CA 90703-1505.
- What is Joanne Lam's phone number?
- The practice phone number listed in the NPPES registry for Joanne Lam is (562) 924-9581.
- Does Joanne Lam accept Medicare?
- Joanne Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanne Lam's NPI active?
- Yes — Joanne Lam's NPI (1457043317) is active in the NPPES registry as of the last update on 2023-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.