Eliza Ahn, M.D.
NPI 1356450498 · Internal Medicine Physician · Van Nuys, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eliza Ahn, M.D. is a Internal Medicine Physician provider in Van Nuys, CA (NPI 1356450498).
Provider details
- NPI number
- 1356450498
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G77767 (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
19 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
1,252 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 | 544 | $137 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 295 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $90 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 108 | $9 |
| Assessment of Emotional Or Behavioral Problems96127 | 104 | $5 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 68 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 170 | 53 |
| Levothyroxine Sodium | 117 | 33 |
| Lorazepam | 89 | 18 |
| Diclofenac Sodium | 88 | 37 |
| Gabapentin | 88 | 31 |
| Losartan Potassium | 82 | 30 |
| Amlodipine Besylate | 70 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,314 across 38 records (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
- 2006-08-30
- Last updated
- 2021-07-07
- Certified
- 2021-06-18
Frequently asked questions
- What is Eliza Ahn's NPI number?
- Eliza Ahn's National Provider Identifier (NPI) is 1356450498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eliza Ahn's specialty?
- Eliza Ahn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eliza Ahn located?
- Eliza Ahn's practice location on file with NPPES is 15243 Vanowen St Ste 311, Van Nuys, CA 91405-3653.
- What is Eliza Ahn's phone number?
- The practice phone number listed in the NPPES registry for Eliza Ahn is (747) 800-7454.
- Does Eliza Ahn accept Medicare?
- Eliza Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eliza Ahn's NPI active?
- Yes — Eliza Ahn's NPI (1356450498) is active in the NPPES registry as of the last update on 2021-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.