Richard Han, M.D.
NPI 1821061466 · Internal Medicine Physician · Buena Park, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Han, M.D. is a Internal Medicine Physician provider in Buena Park, CA (NPI 1821061466).
Provider details
- NPI number
- 1821061466
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G79142 (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
598 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 181 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 156 | $98 |
| Urine Microalbumin (protein) Analysis82044 | 80 | $6 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 50 | $140 |
| Hemoglobin A1c Level83036 | 33 | $10 |
| Complete Ultrasound Scan of Abdomen76700 | 20 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 127 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 782 | 222 |
| Atorvastatin Calcium | 676 | 173 |
| Amlodipine Besylate | 628 | 165 |
| Olmesartan Medoxomil | 452 | 112 |
| Metformin Hcl | 433 | 131 |
| Levothyroxine Sodium | 312 | 70 |
| Empagliflozin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,156 across 129 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
- 2006-02-13
- Last updated
- 2020-02-12
- Certified
- 2020-02-12
Frequently asked questions
- What is Richard Han's NPI number?
- Richard Han's National Provider Identifier (NPI) is 1821061466, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Han's specialty?
- Richard Han is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Han located?
- Richard Han's practice location on file with NPPES is 5832 Beach Blvd Unit 214, Buena Park, CA 90621-5501.
- What is Richard Han's phone number?
- The practice phone number listed in the NPPES registry for Richard Han is (714) 523-7575.
- Does Richard Han accept Medicare?
- Richard Han is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Han's NPI active?
- Yes — Richard Han's NPI (1821061466) is active in the NPPES registry as of the last update on 2020-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.