DR. JANICE M FIELDS (MD) – Gastroenterology Physician, NPI 1346223609
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
648 GASTROENTEROLOGY in MI
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Provider Addresses for DR. JANICE M FIELDS (MD)
30055, Northwestern Highway, Farmington Hills, Southfield Township, Oakland County, Michigan, 48334, United States
STE 250
FARMINGTON HILLS, MI 483343230
Phone: (248) 985-5000
Fax: (248) 985-5555
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 177 Open Payments records for all available years, with a total value of $3,386.
Total Amount is formed as General ($3,386) + Research ($0) + Ownership ($0) = $3,386.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: ABBVIE INC. ($869).
Total Amount
$3,386
General + Research + Ownership
Payments
177
Total payment records
General Amount
$3,386
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-06-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100610000388 | I | Gastroenterology | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 101 | 79 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 58 | 58 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 57 | 35 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 50 | 50 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 49 | 49 | $0 |
Insurance plans in this area (ZIP 48334)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | MI | 45385 | Removal of polyps or growths of large bowel using an endoscope | 61 | 60 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Gastroenterology, Internal Medicine | MI | |
| Physician Assistant | MI | |
| Gastroenterology, Internal Medicine | MI | |
| Gastroenterology, Internal Medicine | MI | |
| P A T H O L O G Y | NY | |
| Internal Medicine, Gastroenterology | MI | |
| Internal Medicine, Gastroenterology | MI | |
| Gastroenterology, Internal Medicine | MI | |
| P A T H O L O G Y | WI | |
| Physician Assistant | MI |
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