Anthony Phan, M.D.
NPI 1124207006 · Internal Medicine Physician · Simi Valley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anthony Phan, M.D. is a Internal Medicine Physician provider in Simi Valley, CA (NPI 1124207006).
Provider details
- NPI number
- 1124207006
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G83470 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,067 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 834 | $137 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 569 | $61 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 285 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 140 | $9 |
| Blood Test, Clotting Time85610 | 103 | $4 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 75 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 189 | 43 |
| Liothyronine Sodium | 126 | 23 |
| Metformin Hcl | 123 | 30 |
| Doxycycline Hyclate | 110 | 76 |
| Thyroid,porkbrand: NP Thyroid | 108 | 22 |
| Apixabanbrand: Eliquis | 57 | — |
| Alprazolam | 54 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-29
- Last updated
- 2019-08-21
Frequently asked questions
- What is Anthony Phan's NPI number?
- Anthony Phan's National Provider Identifier (NPI) is 1124207006, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anthony Phan's specialty?
- Anthony Phan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Anthony Phan located?
- Anthony Phan's practice location on file with NPPES is 1189 Swallow Ln Ste 110, Simi Valley, CA 93065-3157.
- What is Anthony Phan's phone number?
- The practice phone number listed in the NPPES registry for Anthony Phan is (805) 526-3213.
- Does Anthony Phan accept Medicare?
- Anthony Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anthony Phan's NPI active?
- Yes — Anthony Phan's NPI (1124207006) is active in the NPPES registry as of the last update on 2019-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.