Wan Yao, M.D.
NPI 1518951649 · Internal Medicine Physician · Monterey Park, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wan Yao, M.D. is a Internal Medicine Physician provider in Monterey Park, CA (NPI 1518951649).
Provider details
- NPI number
- 1518951649
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A77060 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
691 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 371 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 94 | $140 |
| Administration of Influenza Virus VaccineG0008 | 80 | $34 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 67 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $138 |
| Injection of Drug Or Substance Under Skin Or Into Muscle |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 150 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 1,130 | 291 |
| Amlodipine Besylate | 1,114 | 294 |
| Atorvastatin Calcium | 660 | 195 |
| Icosapent Ethylbrand: Vascepa | 469 | 76 |
| Raloxifene Hcl | 392 | 100 |
| Olmesartan Medoxomil | 368 | 95 |
| Metoprolol Succinate | 363 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$118 across 5 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
- 2005-09-05
- Last updated
- 2019-04-19
Frequently asked questions
- What is Wan Yao's NPI number?
- Wan Yao's National Provider Identifier (NPI) is 1518951649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wan Yao's specialty?
- Wan Yao is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wan Yao located?
- Wan Yao's practice location on file with NPPES is 228 N Garfield Ave Ste 302, Monterey Park, CA 91754-1709.
- What is Wan Yao's phone number?
- The practice phone number listed in the NPPES registry for Wan Yao is (626) 288-3219.
- Does Wan Yao accept Medicare?
- Wan Yao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wan Yao's NPI active?
- Yes — Wan Yao's NPI (1518951649) is active in the NPPES registry as of the last update on 2019-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.