Fan Chen, M.D.
NPI 1720440001 · Internal Medicine Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fan Chen, M.D. is a Internal Medicine Physician provider in Ann Arbor, MI (NPI 1720440001).
Provider details
- NPI number
- 1720440001
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301119284 (MI)
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
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
274 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 35 Minutes99232 | 166 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 29 | $114 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 26 | $81 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 21 | $119 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 18 | $173 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 |
Practice location
Mailing address
Additional practice locations (1)
- 2799 W Grand BlvdDetroit, MI 48202-2608Phone: (313) 916-2600
Registry dates
- Enumerated
- 2016-03-24
- Last updated
- 2022-10-18
- Certified
- 2022-10-18
Frequently asked questions
- What is Fan Chen's NPI number?
- Fan Chen's National Provider Identifier (NPI) is 1720440001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fan Chen's specialty?
- Fan Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Fan Chen located?
- Fan Chen's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Fan Chen's phone number?
- The practice phone number listed in the NPPES registry for Fan Chen is (734) 936-4000.
- Does Fan Chen accept Medicare?
- Fan Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fan Chen's NPI active?
- Yes — Fan Chen's NPI (1720440001) is active in the NPPES registry as of the last update on 2022-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.