JAMES M WILLIAMS (MD) – Family Medicine Physician, NPI 1407849433
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,047 FAMILY PRACTICE in WI
Loading map...
Provider Addresses for JAMES M WILLIAMS (MD)
City Road - A, City Road, Hyde, Winchester, Hampshire, South East, England, SO23 8SD, United Kingdom
GREEN LAKE, WI 54941
Phone: (920) 294-0100
Fax: (920) 294-0123
Type: Mailing
670 Cty Rd A
Green Lake, WI 54941
Phone: (920) 294-0100
Fax: (920) 294-0123
Type: Location
2480 MARINA CIR UNIT 114
GREEN BAY, WI 543044875
Phone: (920) 360-6282
Fax: (920) 283-1278
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2004-09-17
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 |
|---|---|---|---|---|
| I20040917001076 | I | Family Practice | WI | 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 |
|---|---|---|---|---|
| 99350 | Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | 1,081 | 279 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 626 | 168 | $0 |
| 99487 | Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month | 561 | 182 | $0 |
| 99439 | Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 521 | 140 | $0 |
| 99489 | Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month | 520 | 155 | $0 |
Insurance plans in this area (ZIP 54941)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | WI | 20610 | Aspiration and/or injection of large joint or joint capsule | 20 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| Nurse Practitioner | WI |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.