Daniel Hwang, M.D.
NPI 1871683532 · Internal Medicine Physician · Daly City, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Hwang, M.D. is a Internal Medicine Physician provider in Daly City, CA (NPI 1871683532).
Provider details
- NPI number
- 1871683532
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A76684 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
433 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 162 | $107 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 156 | $152 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $156 |
| Admn Sarscov2 Vacc 1 Dose90480 | 24 | $52 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $215 |
| Administration of Influenza Virus VaccineG0008 | 19 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 154 | 47 |
| Amlodipine Besylate | 85 | 25 |
| Omeprazole | 43 | 17 |
| Lisinopril | 39 | 11 |
| Losartan Potassium | 38 | 13 |
| Allopurinol | 37 | — |
| Gabapentin | 36 |
Practice location
Mailing address
Additional practice locations (1)
- 1375 Sutter StSte 308San Francisco, CA 94109-5438Phone: (415) 600-0140Fax: (415) 600-0145
Registry dates
- Enumerated
- 2006-10-13
- Last updated
- 2020-06-22
- Certified
- 2020-06-22
Frequently asked questions
- What is Daniel Hwang's NPI number?
- Daniel Hwang's National Provider Identifier (NPI) is 1871683532, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Hwang's specialty?
- Daniel Hwang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Hwang located?
- Daniel Hwang's practice location on file with NPPES is 901 Campus Dr Ste 111, Daly City, CA 94015-4930.
- What is Daniel Hwang's phone number?
- The practice phone number listed in the NPPES registry for Daniel Hwang is (650) 652-8500.
- Does Daniel Hwang accept Medicare?
- Daniel Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Hwang's NPI active?
- Yes — Daniel Hwang's NPI (1871683532) is active in the NPPES registry as of the last update on 2020-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.