Peter Phan, MD
NPI 1811195563 · Nuclear Medicine Physician · Aliso Viejo, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Phan, MD is a Nuclear Medicine Physician provider in Aliso Viejo, CA (NPI 1811195563).
Provider details
- NPI number
- 1811195563
- Entity type
- Individual
- Primary specialty
- Nuclear Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2007018365 (MO)
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
18 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
2,260 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 684 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 171 | $44 |
| X-Ray of Abdomen, 1 View74018 | 147 | $10 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 116 | $98 |
| X-Ray of Chest, 2 Views71046 | 107 | $12 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 93 | $127 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-04
- Last updated
- 2009-09-16
Frequently asked questions
- What is Peter Phan's NPI number?
- Peter Phan's National Provider Identifier (NPI) is 1811195563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Phan's specialty?
- Peter Phan is listed in the NPPES registry with a primary specialty of Nuclear Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Phan located?
- Peter Phan's practice location on file with NPPES is 9 Goldenrain, Aliso Viejo, CA 92656-2118.
- What is Peter Phan's phone number?
- The practice phone number listed in the NPPES registry for Peter Phan is (949) 716-0949.
- Does Peter Phan accept Medicare?
- Peter Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Phan's NPI active?
- Yes — Peter Phan's NPI (1811195563) is active in the NPPES registry as of the last update on 2009-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.