Bob Chiang, M.D.
NPI 1619118494 · Family Medicine Physician · Bradbury, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bob Chiang, M.D. is a Family Medicine Physician provider in Bradbury, CA (NPI 1619118494).
Provider details
- NPI number
- 1619118494
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A106244 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
474 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 249 | $104 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 146 | $73 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 79 | $172 |
Typical Medicare-allowed amounts for these services range $73–$172 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 91 | 27 |
| Famotidine | 74 | 20 |
| Gabapentin | 70 | 22 |
| Losartan Potassium | 40 | — |
| Tamsulosin Hcl | 39 | 13 |
| Finasteride | 38 | — |
| Furosemide | 37 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-03-09
- Last updated
- 2021-03-12
- Certified
- 2021-03-12
Frequently asked questions
- What is Bob Chiang's NPI number?
- Bob Chiang's National Provider Identifier (NPI) is 1619118494, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bob Chiang's specialty?
- Bob Chiang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bob Chiang located?
- Bob Chiang's practice location on file with NPPES is 7 Woodlyn Ln, Bradbury, CA 91008-1131.
- What is Bob Chiang's phone number?
- The practice phone number listed in the NPPES registry for Bob Chiang is (626) 818-9506.
- Does Bob Chiang accept Medicare?
- Bob Chiang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bob Chiang's NPI active?
- Yes — Bob Chiang's NPI (1619118494) is active in the NPPES registry as of the last update on 2021-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.