Denise Yun, MD
NPI 1770655508 · Internal Medicine Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denise Yun, MD is a Internal Medicine Physician provider in Berkeley, CA (NPI 1770655508).
Provider details
- NPI number
- 1770655508
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A73522 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,495 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) |
|---|---|---|
| Travel Allowance One Way in Connection With Medically Necessary Laboratory Specimen Collection Drawn From Home Bound Or Nursing Home Bound Patient; Prorated Miles Actually TravelledP9603 | 1,034 | $1 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 156 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 83 | $146 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 52 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 37 | $149 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 215 | 35 |
| Atorvastatin Calcium | 199 | 36 |
| Amlodipine Besylate | 143 | 34 |
| Memantine Hcl | 88 | 11 |
| Donepezil Hcl | 81 | 16 |
| Apixabanbrand: Eliquis | 75 | 14 |
| Quetiapine Fumarate | 73 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 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
Additional practice locations (1)
- 1144 65th St Ste FOakland, CA 94608-1053Phone: (510) 929-1400Fax: (510) 929-1414
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2025-12-23
- Certified
- 2025-12-23
Frequently asked questions
- What is Denise Yun's NPI number?
- Denise Yun's National Provider Identifier (NPI) is 1770655508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denise Yun's specialty?
- Denise Yun is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Denise Yun located?
- Denise Yun's practice location on file with NPPES is 1801 Shattuck Ave Ste a, Berkeley, CA 94709-1872.
- What is Denise Yun's phone number?
- The practice phone number listed in the NPPES registry for Denise Yun is (888) 663-6331.
- Does Denise Yun accept Medicare?
- Denise Yun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denise Yun's NPI active?
- Yes — Denise Yun's NPI (1770655508) is active in the NPPES registry as of the last update on 2025-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.