Hellan Kwon, MD
NPI 1336152651 · Gastroenterology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hellan Kwon, MD is a Gastroenterology Physician provider in Ann Arbor, MI (NPI 1336152651).
Provider details
- NPI number
- 1336152651
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301081498 (MI)
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
19 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
209 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 49 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 45 | $79 |
| Measurement of Liver Stiffness91200 | 36 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $97 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 30 | $174 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tacrolimus | 109 | 19 |
| Ursodiol | 89 | 20 |
| Omeprazole | 42 | — |
| Azathioprine | 33 | — |
| Entecavir | 33 | — |
| Mycophenolate Mofetil | 33 | — |
| Cyclosporine, Modifiedbrand: Cyclosporine Modified | 26 | — |
| Rifaximinbrand: Xifaxan |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-15
- Last updated
- 2019-11-20
Frequently asked questions
- What is Hellan Kwon's NPI number?
- Hellan Kwon's National Provider Identifier (NPI) is 1336152651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hellan Kwon's specialty?
- Hellan Kwon is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Hellan Kwon located?
- Hellan Kwon's practice location on file with NPPES is 1500 East Medical Center Dr, Ann Arbor, MI 48109-5362.
- What is Hellan Kwon's phone number?
- The practice phone number listed in the NPPES registry for Hellan Kwon is (734) 647-5944.
- Does Hellan Kwon accept Medicare?
- Hellan Kwon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hellan Kwon's NPI active?
- Yes — Hellan Kwon's NPI (1336152651) is active in the NPPES registry as of the last update on 2019-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.