Doctor profile · Federal record
Dr. Michael Greiner, M.D.
Family Medicine Physician (CMS: Family Practice) · Fairfield, IA
- NPI 1124133640
- Accepts Medicare
- MIPS 64.1 / 100 · 2023
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2000B South Main St
Fairfield, IA 525563740
(641) 472-4156
fax (641) 472-9436
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- June 19, 2009
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Iowa #26708
- Medicaid
- IA #0042382
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124133640. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$98
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Nevro Corp. | 2 | $97.84 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,231
Patients
1,054
Total drug cost
$58,533
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 450 | 97 | $3,630 |
| Lisinopril | Generic | 433 | 108 | $4,239 |
| Metoprolol Succinate | Generic | 385 | 93 | $8,209 |
| Atorvastatin Calcium | Generic | 373 | 90 | $4,661 |
| Losartan Potassium | Generic | 366 | 91 | $4,765 |
| Levothyroxine Sodium | Generic | 304 | 87 | $4,382 |
| Omeprazole | Generic | 273 | 71 | $4,721 |
| Furosemide | Generic | 245 | 70 | $1,717 |
| Tamsulosin Hcl | Generic | 242 | 55 | $5,090 |
| Hydrochlorothiazide | Generic | 228 | 60 | $1,069 |
Frequently asked questions
What is Dr. Michael Greiner's medical specialty?
Dr. Michael Greiner practices Family Medicine Physician in Fairfield, IA.
Where does Dr. Michael Greiner practice?
Dr. Michael Greiner practices at 2000B South Main St, Fairfield, IA 525563740. Office phone: 6414724156.
What is Dr. Michael Greiner's NPI?
Dr. Michael Greiner's National Provider Identifier (NPI) is 1124133640, issued by NPPES.
Does Dr. Michael Greiner accept Medicare assignment?
Yes. Dr. Michael Greiner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.