Physician Profile
Lawrence G. Mendelow, MD
Unclaimed ProfileAbout Dr. Mendelow
Lawrence G. Mendelow, MD is a healthcare provider in Saint Louis, MO specializing in colon & rectal surgery. Lawrence trained at Duke University School of Medicine, graduating in 1983. According to Medicare claims data, Lawrence cared for 377 Medicare patients across 458 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and diagnostic exam of anus using an endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 991-4644
- Email not available
Practice Locations
555 N NEW BALLAS RD DIV SURG COLON/RECTAL, STE 265
Saint Louis, MO 63141
Procedures Most Often Billed to Medicare
458 services · 377 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
52 | More often than most peers in Colon & Rectal Surgery |
| Removal of external hemorrhoids by rubber banding | Procedure | 46221 |
33 | As often as other peers in Colon & Rectal Surgery |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
27 | As often as other peers in Colon & Rectal Surgery |
| Partial removal of large bowel and reattachment to rectum using an endoscope | Procedure | 44207 |
14 | More often than most peers in Colon & Rectal Surgery |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
12 | Less often than most peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
82 | More often than most peers in Colon & Rectal Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
53 | More often than most peers in Colon & Rectal Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
48 | More often than most peers in Colon & Rectal Surgery |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
43 | More often than most peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
43 | More often than most peers in Colon & Rectal Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other colorectal surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 4 groups
Other colorectal surgeons in Saint Louis 8
Same specialty, same city.
Trained at Duke University School of Medicine 2
Other providers in the same specialty who trained at the same institution.
Class of 1983 at Duke University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of anus using an endoscope 5
Providers in MO who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Mendelow?
Dr. Mendelow is a colorectal surgeon in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
What is Dr. Mendelow's address?
Dr. Mendelow is listed at 555 N New Ballas Rd Div Surg Colon/Rectal, Ste 265, Saint Louis, MO 63141. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Mendelow?
The number on file is (314) 991-4644. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mendelow's NPI number?
Dr. Mendelow's National Provider Identifier is 1811932502. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mendelow train?
Dr. Mendelow attended Duke University School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mendelow been practicing?
Dr. Mendelow has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Mendelow perform?
According to Medicare billing data, Dr. Mendelow performs procedures including diagnostic exam of anus using an endoscope, removal of external hemorrhoids by rubber banding and biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mendelow confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mendelow. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.