Doctor profile · Federal record
Dr. Janice Fields, MD
Gastroenterology Physician (CMS: Gastroenterology) · Farmington Hills, MI
- NPI 1346223609
- Accepts Medicare
- MIPS 87.3 / 100 · 2023
- 34 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
30055 Northwestern Hwy, Ste 250
Farmington Hills, MI 483343230
(248) 985-5000
fax (248) 985-5555
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- August 6, 2010
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Michigan #4301066213
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346223609. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
480
Distinct HCPCS
10
Medicare allowed
$61,409
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 101 | 79 | $92 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 58 | 58 | $126 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 57 | 35 | $52 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 50 | 50 | $265 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 49 | 49 | $114 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 48 | 48 | $136 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 36 | 35 | $129 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 28 | 28 | $172 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 19 | 19 | $117 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 18 | 18 | $193 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 394. This provider delivers 1.2× the peer median.Open Payments
Industry payments received
All-time total
$1,412
Transactions
61
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 20 | $428.23 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 10 | $230.45 | |
| Lilly USA, LLC | 5 | $112.21 | |
| Celgene Corporation | 6 | $105.68 | |
| AstraZeneca Pharmaceuticals LP | 2 | $89.56 | |
| Janssen Biotech, Inc. | 4 | $78.51 | |
| Gilead Sciences, Inc. | 4 | $65.86 | |
| Ardelyx, Inc. | 2 | $44.23 | |
| Organon Llc | 2 | $41.93 | |
| Intercept Pharmaceuticals, Inc. | 1 | $29.63 | |
| QOL Medical, LLC | 1 | $23.72 | |
| Sandoz Inc. | 1 | $21.43 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $20.98 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $20.15 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $19.04 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
799
Patients
310
Total drug cost
$408,934
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 203 | 80 | $2,764 |
| Famotidine | Generic | 151 | 57 | $3,048 |
| Pantoprazole Sodium | Generic | 116 | 35 | $2,862 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 97 | 92 | $2,580 |
| Linzess (Linaclotide) | Brand | 63 | 20 | $57,575 |
| Dicyclomine Hcl | Generic | 27 | 15 | $977 |
| Lansoprazole | Generic | 21 | 0 | $644 |
| Mesalamine | Generic | 19 | 0 | $16,506 |
| Ondansetron Odt (Ondansetron) | Brand | 18 | 0 | $273 |
| Budesonide Ec (Budesonide) | Brand | 17 | 0 | $1,457 |
Frequently asked questions
What is Dr. Janice Fields's medical specialty?
Dr. Janice Fields practices Gastroenterology Physician in Farmington Hills, MI.
Where does Dr. Janice Fields practice?
Dr. Janice Fields practices at 30055 Northwestern Hwy, Farmington Hills, MI 483343230. Office phone: 2489855000.
What is Dr. Janice Fields's NPI?
Dr. Janice Fields's National Provider Identifier (NPI) is 1346223609, issued by NPPES.
Does Dr. Janice Fields accept Medicare assignment?
Yes. Dr. Janice Fields accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Janice Fields commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.