STEVEN L POSAR (MD) – Internal Medicine Physician, NPI 1154308575
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,186 INTERNAL MEDICINE in MO
Provider Addresses for STEVEN L POSAR (MD)
303 N Stadium Blvd Fl 2
Columbia, MO 652031493
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
40600 Ann Arbor Rd E Ste 201
Plymouth, MI 481704675
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
1821 Walden Office Sq Ste 400
Schaumburg, IL 601734273
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
6000 Poplar Ave Ste 250
Memphis, TN 381193974
Phone: (574) 546-1900
Type: Location
675 Town Square Blvd Ste 200
Garland, TX 750402991
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
21 E State St
Columbus, OH 432154281
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
12345 W 95th St Fl 2
Lenexa, KS 662153853
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
306 W Main St Ste 512
Frankfort, KY 406011840
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
311 E Pleasant Valley Blvd
Altoona, PA 166025512
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
PO BOX 10299
FORT WAYNE, IN 468510299
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Mailing
304, North Main Street, Crown Point, Lake County, Indiana, 46307, United States
CROWN POINT, IN 463071877
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $110.
Total Amount is formed as General ($110) + Research ($0) + Ownership ($0) = $110.
Last reported payment date: 2024-04-30 • Largest payer in this snapshot: ABBVIE INC. ($66).
Total Amount
$110
General + Research + Ownership
Payments
3
Total payment records
General Amount
$110
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $66 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | $44 |
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: 2026-02-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 10 Medicare enrollment records; no due dates published yet.
Enrollment records
10
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 |
|---|---|---|---|---|
| I20100806000503 | I | Internal Medicine | IN | TBD |
| I20160108001254 | I | Internal Medicine | MI | TBD |
| I20200226002579 | I | Internal Medicine | KY | TBD |
| I20200811001672 | I | Internal Medicine | OH | TBD |
| I20210618000646 | I | Internal Medicine | IL | TBD |
| I20210811004535 | I | Internal Medicine | TX | TBD |
| I20231229002719 | I | Internal Medicine | TN | TBD |
| I20251014002399 | I | Internal Medicine | PA | TBD |
| I20260107000780 | I | Internal Medicine | KS | TBD |
| I20260221000899 | I | Internal Medicine | MO | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 65203)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | PA |
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.