Calvin Doan, DO
NPI 1205364569 · Family Medicine Physician · Santa Ana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Doan, DO is a Family Medicine Physician provider in Santa Ana, CA (NPI 1205364569).
Provider details
- NPI number
- 1205364569
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A16733 (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
9 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
6,016 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 Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 2,905 | $114 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,188 | $122 |
| Advance Care Planning, First 30 Minutes99497 | 345 | $78 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 311 | $133 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 230 | $179 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 137 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 602 | 103 |
| Apixabanbrand: Eliquis | 358 | 40 |
| Amlodipine Besylate | 349 | 55 |
| Gabapentin | 313 | 48 |
| Metformin Hcl | 297 | 48 |
| Donepezil Hcl | 222 | 28 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-31
- Last updated
- 2023-09-19
- Certified
- 2023-09-19
Frequently asked questions
- What is Calvin Doan's NPI number?
- Calvin Doan's National Provider Identifier (NPI) is 1205364569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Doan's specialty?
- Calvin Doan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Doan located?
- Calvin Doan's practice location on file with NPPES is 2929 S Harbor Blvd, Santa Ana, CA 92704-6428.
- What is Calvin Doan's phone number?
- The practice phone number listed in the NPPES registry for Calvin Doan is (949) 535-0061.
- Does Calvin Doan accept Medicare?
- Calvin Doan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Doan's NPI active?
- Yes — Calvin Doan's NPI (1205364569) is active in the NPPES registry as of the last update on 2023-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.