Calvin Hang, MD, PHD
NPI 1578940573 · Student in an Organized Health Care Education/Training Program · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Hang, MD, PHD is a Student in an Organized Health Care Education/Training Program provider in Santa Rosa, CA (NPI 1578940573).
Provider details
- NPI number
- 1578940573
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
94 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 94 | $8 |
Typical Medicare-allowed amounts for these services range $8–$8 (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 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 190 | 67 |
| Furosemide | 164 | 70 |
| Metoprolol Tartrate | 142 | 66 |
| Atorvastatin Calcium | 124 | 52 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 83 | 30 |
| Spironolactone | 76 | 31 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-29
- Last updated
- 2022-11-01
- Certified
- 2022-11-01
Frequently asked questions
- What is Calvin Hang's NPI number?
- Calvin Hang's National Provider Identifier (NPI) is 1578940573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Hang's specialty?
- Calvin Hang is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Calvin Hang located?
- Calvin Hang's practice location on file with NPPES is 401 Bicentennial Way Ste 190, Santa Rosa, CA 95403-2149.
- What is Calvin Hang's phone number?
- The practice phone number listed in the NPPES registry for Calvin Hang is (707) 393-4000.
- Does Calvin Hang accept Medicare?
- Calvin Hang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Hang's NPI active?
- Yes — Calvin Hang's NPI (1578940573) is active in the NPPES registry as of the last update on 2022-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.