Doctor profile · Federal record
Dr. Dianne Harker, NP
Nurse Practitioner · Registered Nurse · Saginaw, MI
- NPI 1891361739
- Accepts Medicare
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
700 Cooper Ave
Saginaw, MI 486025383
(989) 583-4000
Credentials & registration
- NPI registered
- June 2021 — 5 yrs on file
- Profile last updated
- June 29, 2021
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State licenses (2)
- Michigan #4704191816 · Michigan #4704191818NSA210D8
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891361739. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,221
Distinct HCPCS
2
Medicare allowed
$87,472
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,026 | 371 | $65 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 195 | 169 | $107 |
In context: peer comparison
Among 22 peers in Saginaw Nurse Practitioner, average services per provider: 83. This provider delivers 15× the peer median.Frequently asked questions
What is Dr. Dianne Harker's medical specialty?
Dr. Dianne Harker practices Nurse Practitioner in Saginaw, MI.
Where does Dr. Dianne Harker practice?
Dr. Dianne Harker practices at 700 Cooper Ave, Saginaw, MI 486025383. Office phone: 9895834000.
What is Dr. Dianne Harker's NPI?
Dr. Dianne Harker's National Provider Identifier (NPI) is 1891361739, issued by NPPES.
Does Dr. Dianne Harker accept Medicare assignment?
Yes. Dr. Dianne Harker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dianne Harker commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.