Freddy Chan, P.A.
NPI 1639289614 · Physician Assistant · Monterey Park, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Freddy Chan, P.A. is a Physician Assistant provider in Monterey Park, CA (NPI 1639289614).
Provider details
- NPI number
- 1639289614
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
- License
- PA17266 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
3,203 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 1,541 | $78 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 833 | $124 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 102 | $50 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 101 | $14 |
| X-Ray of Hand, 2 Views73120 | 94 | $32 |
| X-Ray of Foot, 2 Views73620 | 81 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meloxicam | 170 | 67 |
| Hydroxychloroquine Sulfate | 155 | 51 |
| Methotrexate Sodiumbrand: Methotrexate | 148 | 48 |
| Diclofenac Sodium | 127 | 55 |
| Sulfasalazine | 92 | 29 |
| Prednisone | 85 | 31 |
| Celecoxib | 83 | 38 |
| Baclofen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,445 across 116 records (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
- 2006-08-30
- Last updated
- 2023-03-07
Frequently asked questions
- What is Freddy Chan's NPI number?
- Freddy Chan's National Provider Identifier (NPI) is 1639289614, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Freddy Chan's specialty?
- Freddy Chan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Freddy Chan located?
- Freddy Chan's practice location on file with NPPES is 2063 S Atlantic Blvd, Monterey Park, CA 91754-6344.
- What is Freddy Chan's phone number?
- The practice phone number listed in the NPPES registry for Freddy Chan is (323) 796-0170.
- Does Freddy Chan accept Medicare?
- Freddy Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Freddy Chan's NPI active?
- Yes — Freddy Chan's NPI (1639289614) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.