DR. JACK DUNCAN PARKS (MD) – Obstetrics Physician, NPI 1922219666
Obstetrics Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,735 OBSTETRICS/GYNECOLOGY in MI
Provider Addresses for DR. JACK DUNCAN PARKS (MD)
100 MICHIGAN ST NE # MC845
GRAND RAPIDS, MI 495032560
Phone:
Type: Mailing
PO BOX 776982
CHICAGO, IL 606776982
Phone: (800) 494-5797
Type: Mailing
1675 LEAHY ST
STE 428B
MUSKEGON, MI 494425500
Phone: (231) 672-3300
Fax: (231) 672-3380
Type: Location
722, Locust Street, Big Rapids, Mecosta County, Michigan, 49307, United States
SUITE 2
BIG RAPIDS, MI 49307
Phone: (231) 592-4200
Fax: (231) 527-6859
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 22 Open Payments records for all available years, with a total value of $493.
Total Amount is formed as General ($493) + Research ($0) + Ownership ($0) = $493.
Last reported payment date: 2024-11-25 • Largest payer in this snapshot: Astellas Pharma US Inc ($141).
Total Amount
$493
General + Research + Ownership
Payments
22
Total payment records
General Amount
$493
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Astellas Pharma US Inc | $141 |
| Aspira Women's Health Inc | $83 |
| Organon LLC | $52 |
| Bayer Healthcare Pharmaceuticals Inc. | $48 |
| Daiichi Sankyo Inc. | $36 |
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: 2007-09-13
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 |
|---|---|---|---|---|
| I20070913000341 | I | Obstetrics/Gynecology | 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 |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 15 | 15 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 15 | 12 | $0 |
Insurance plans in this area (ZIP 49503)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| Nurse Practitioner | MI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| - | MI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| - | MI | |
| Nurse Practitioner | MI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MI |
Reviews
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