Chang-Hoon Ahn, D.O.
NPI 1558350827 · Family Medicine Physician · Henderson, NV
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chang-Hoon Ahn, D.O. is a Family Medicine Physician provider in Henderson, NV (NPI 1558350827).
Provider details
- NPI number
- 1558350827
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 1338 (NV)
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
20 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
58 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 | 38 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $89 |
Typical Medicare-allowed amounts for these services range $89–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 377 | 125 |
| Rosuvastatin Calcium | 351 | 120 |
| Amlodipine Besylate | 310 | 102 |
| Levothyroxine Sodium | 276 | 81 |
| Lisinopril | 239 | 75 |
| Omeprazole | 194 | 54 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-19
- Last updated
- 2017-01-17
Frequently asked questions
- What is Chang-Hoon Ahn's NPI number?
- Chang-Hoon Ahn's National Provider Identifier (NPI) is 1558350827, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chang-Hoon Ahn's specialty?
- Chang-Hoon Ahn is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chang-Hoon Ahn located?
- Chang-Hoon Ahn's practice location on file with NPPES is 2845 Siena Heights Dr, Henderson, NV 89052-4153.
- What is Chang-Hoon Ahn's phone number?
- The practice phone number listed in the NPPES registry for Chang-Hoon Ahn is (702) 617-1227.
- Does Chang-Hoon Ahn accept Medicare?
- Chang-Hoon Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chang-Hoon Ahn's NPI active?
- Yes — Chang-Hoon Ahn's NPI (1558350827) is active in the NPPES registry as of the last update on 2017-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.