Esther Ahn
NPI 1023375847 · Internal Medicine Physician · Culver City, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Esther Ahn is a Internal Medicine Physician provider in Culver City, CA (NPI 1023375847).
Provider details
- NPI number
- 1023375847
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
438 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $85 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 128 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 45 | $51 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 37 | $79 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 21 | $16 |
| Face-To-Face Behavioral Counseling for Obesity, 15 MinutesG0447 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 247 | 74 |
| Amlodipine Besylate | 133 | 38 |
| Losartan Potassium | 100 | 31 |
| Levothyroxine Sodium | 76 | 19 |
| Simvastatin | 63 | 18 |
| Lisinopril | 56 | 19 |
| Pantoprazole Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 4460 Wilshire Blvd#208Los Angeles, CA 90010-3722Phone: (213) 477-4731
Registry dates
- Enumerated
- 2012-04-18
- Last updated
- 2018-11-28
Frequently asked questions
- What is Esther Ahn's NPI number?
- Esther Ahn's National Provider Identifier (NPI) is 1023375847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Esther Ahn's specialty?
- Esther Ahn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Esther Ahn located?
- Esther Ahn's practice location on file with NPPES is 10100 Culver Blvd Ste a, Culver City, CA 90232-3174.
- What is Esther Ahn's phone number?
- The practice phone number listed in the NPPES registry for Esther Ahn is (310) 423-5555.
- Does Esther Ahn accept Medicare?
- Esther Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Esther Ahn's NPI active?
- Yes — Esther Ahn's NPI (1023375847) is active in the NPPES registry as of the last update on 2018-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.