DR. LAWRENCE G MENDELOW (MD) – Colon & Rectal Surgery Physician, NPI 1811932502
Colon & Rectal Surgery Physician
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Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
50 COLORECTAL SURGERY (PROCTOLOGY) in MO
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Provider Addresses for DR. LAWRENCE G MENDELOW (MD)
PO BOX 7412011
CHICAGO, IL 606742011
Phone: (314) 991-4644
Fax: (866) 342-0133
Type: Mailing
SSM Physical Therapy, 555, North New Ballas Road, St. Louis, Saint Louis County, Missouri, 63141, United States
SUITE 265
SAINT LOUIS, MO 631412330
Phone: (314) 991-4644
Fax: (314) 991-4910
Type: Mailing
555 N NEW BALLAS RD
DIV SURG COLON/RECTAL, STE 265
SAINT LOUIS, MO 631416825
Phone: (314) 991-4644
Fax: (866) 342-0133
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 169 Open Payments records for all available years, with a total value of $107,878.
Total Amount is formed as General ($107,878) + Research ($0) + Ownership ($0) = $107,878.
Last reported payment date: 2024-12-30 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($107,616).
Total Amount
$107,878
General + Research + Ownership
Payments
169
Total payment records
General Amount
$107,878
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $107,616 |
| Lilly USA, LLC | $123 |
| Rhythm Pharmaceuticals, Inc. | $108 |
| Integra LifeSciences Corporation | $31 |
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: 2009-03-27
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 |
|---|---|---|---|---|
| I20090327000234 | I | Colorectal Surgery (Proctology) | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 46600 | Diagnostic exam of anus using an endoscope | 63 | 53 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 48 | 48 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 44 | 38 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 44 | 23 | $0 |
| 46221 | Removal of external hemorrhoids by rubber banding | 39 | 35 | $0 |
Insurance plans in this area (ZIP 60674)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MO | |
| - | MO | |
| - | FL | |
| - | MO | |
| Diagnostic Radiology | IL | |
| - | IL | |
| - | MO | |
| - | MO | |
| - | MO | |
| - | MO |
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