NPPES file of Aug 9, 2026

Lawrence G. Mendelow, MD

Colon & Rectal Surgery Physician · Saint Louis, MO

Lawrence G. Mendelow, MD is a colon & rectal surgery physician with a practice address in Saint Louis, Missouri, and NPI 1811932502, issued on Jun 18, 2006. Check the license (Missouri R9J70, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811932502
Name
Lawrence G. Mendelow
Credential
MD
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
R9J70 MO
Self-reported in NPPES; status is on the state search
Practice location
555 N New Ballas RD, Saint Louis, MO 63141
Phone
(314) 991-4644
Enumerated
Jun 18, 2006
Record last updated
Apr 17, 2025
Fax
(866) 342-0133
Medicaid ID
203270400 MO
Medicare enrollment
Enrolled (PECOS I20090327000234); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 1983
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 555 N New Ballas RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brent Allen, MDVascular Surgery Physician1770513319
  2. Jaime Boswell, MPTPhysical Therapist1639399777
  3. Erin Brewer, P.T.Physical Therapist1548448038
  4. Jason Brinton, MDOphthalmology Physician1891958328
  5. Karen Bromeier, PTPhysical Therapist1588787063
  6. Shari Cohen, MDInternal Medicine Physician1477634764

Verify Lawrence G. Mendelow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license R9J70
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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13% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

167 Medicare Part D claims for 126 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 45 claims were for opioids.

  1. Lawrence Mendelow167
  2. Specialty average192

Most prescribed

  1. Oxycodone Hcl38 claims
  2. Sutab35 claims
  3. Clotrimazole-Betamethasone13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $49,116.93

76 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lawrence Mendelow$49,117
  2. Specialty average$3,468

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Washington UniversitySaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lawrence G. Mendelow among 35 colon & rectal surgery physician records in Missouri

Lawrence G. Mendelow, MD is one of 35 colon & rectal surgery physician records with a practice address in Missouri. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 51% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated1983 · median 2003 among the 30 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Colon & Rectal Surgery Physician providers in Missouri

There are 35 colon & rectal surgery physician records in Missouri.

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. Steven Abbadessa, D.O.Saint Louis, MO 631411881668564
  2. William Chapman, MDSaint Louis, MO 631411003297177
  3. Kathryn Galie, MDSaint Louis, MO 631411164433512
  4. Hannah-Ngoc Ha, M.D.Creve Coeur, MO 631411144223355
  5. Ira Kodner, MDSaint Louis, MO 631411760408983
  6. Eric Lederman, M.D.Saint Louis, MO 631411255368973
  7. Matthew Mutch, MDSaint Louis, MO 631411669498887
  8. Tatiana Ramirez Dominguez, MDSaint Louis, MO 631411043443377

Common questions

What is Lawrence G. Mendelow, MD's NPI number?

Lawrence G. Mendelow, MD's National Provider Identifier (NPI) is 1811932502, issued on Jun 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence G. Mendelow, MD located?

The NPPES record lists a practice address at 555 N New Ballas RD, Saint Louis, MO, 63141. Phone: (314) 991-4644. Providers update this record themselves, so call before visiting.

How can I verify Lawrence G. Mendelow, MD's license?

NPPES lists Missouri license number R9J70, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lawrence G. Mendelow, MD prescribe under Medicare Part D?

In 2024, Lawrence G. Mendelow, MD had 167 Medicare Part D claims for 126 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.

What is Lawrence G. Mendelow, MD's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.