Doctor profile · Federal record
Dr. Erin Diviney Chun, MD
Geriatric Medicine (Internal Medicine) Physician · Family Medicine Physician · Geriatric Medicine (Family Medicine) Physician · Internal Medicine Physician · Ann Arbor, MI
- NPI 1215120738
- 19 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4260 Plymouth RD
Ann Arbor, MI 481092700
(734) 764-6831 - Mailing address
-
3621 S State St
Ann Arbor, MI 481081633
Credentials & registration
- NPI registered
- August 2007 — 19 yrs on file
- Profile last updated
- May 24, 2019
- Specialty taxonomy
- 207RG0300X — NUCC code
- State license (1)
- Michigan #4301086375
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215120738. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
315
Distinct HCPCS
6
Medicare allowed
$45,188
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 110 | 93 | $184 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 93 | 65 | $107 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 47 | 29 | $107 | |
99305 |
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 29 | 28 | $135 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 22 | 18 | $155 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 14 | 11 | $184 |
In context: peer comparison
Among 14 peers in Ann Arbor Geriatric Medicine (Internal Medicine) Physician, average services per provider: 58. This provider delivers 5.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
725
Patients
127
Total drug cost
$35,373
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 90 | 22 | $1,658 |
| Trazodone Hcl | Generic | 69 | 14 | $739 |
| Losartan Potassium | Generic | 65 | 12 | $903 |
| Levothyroxine Sodium | Generic | 64 | 17 | $948 |
| Eliquis (Apixaban) | Brand | 54 | 14 | $13,554 |
| Amlodipine Besylate | Generic | 52 | 14 | $432 |
| Metoprolol Succinate | Generic | 49 | 11 | $724 |
| Myrbetriq (Mirabegron) | Brand | 44 | 0 | $9,756 |
| Metformin Hcl | Generic | 40 | 11 | $717 |
| Metoprolol Tartrate | Generic | 40 | 12 | $571 |
Frequently asked questions
What is Dr. Erin Diviney Chun's medical specialty?
Dr. Erin Diviney Chun practices Geriatric Medicine (Internal Medicine) Physician in Ann Arbor, MI.
Where does Dr. Erin Diviney Chun practice?
Dr. Erin Diviney Chun practices at 4260 Plymouth RD, Ann Arbor, MI 481092700. Office phone: 7347646831.
What is Dr. Erin Diviney Chun's NPI?
Dr. Erin Diviney Chun's National Provider Identifier (NPI) is 1215120738, issued by NPPES.
What procedures does Dr. Erin Diviney Chun commonly perform?
Top Medicare-reported procedures in 2023: Initial nursing facility care with high level of medical decision making (HCPCS 99306); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309). Source: CMS Medicare Physician & Other Practitioners file.