NPPES file of Aug 9, 2026

Lee S. Portnoff, M.D.

MOHS-Micrographic Surgery Physician · Saint Louis, MO

Lee S. Portnoff, M.D. is a mohs-micrographic surgery physician with a practice address in Saint Louis, Missouri, and NPI 1043214505, issued on Jun 11, 2005. Check the license (Missouri R9730, 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
1043214505
Name
Lee S. Portnoff
Credential
M.D.
Primary taxonomy
MOHS-Micrographic Surgery Physician 207ND0101X
License number
R9730 MO
Self-reported in NPPES; status is on the state search
Practice location
4 Dunleith Dr, Saint Louis, MO 63124
Phone
(314) 705-0644
Enumerated
Jun 11, 2005
Record last updated
Mar 10, 2026
Medicare enrollment
Enrolled (PECOS I20100105000640); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 1978
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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Verify Lee S. Portnoff 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 R9730
    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

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71% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024

163 Medicare Part D claims for 115 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D.

  1. Lee Portnoff163
  2. Specialty average570

Most prescribed

  1. Cephalexin85 claims
  2. Doxycycline Monohydrate25 claims
  3. Imiquimod16 claims
  4. Triamcinolone Acetonide12 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Bills Medicare through one group practice

  1. Epiphany Dermatology OF Missouri LLCSaint Louis, MO

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

Lee S. Portnoff among 29 mohs-micrographic surgery physician records in Missouri

Lee S. Portnoff, M.D. is one of 29 mohs-micrographic surgery physician records with a practice address in Missouri. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 97% of these records are
  • In the CMS Doctors and Clinicians fileYes · 97% of these records are
  • Graduated1978 · median 2005 among the 28 with a school on file
  • Record last updated2026 · 31% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

MOHS-Micrographic Surgery Physician providers in Missouri

There are 29 mohs-micrographic surgery physician records in Missouri.

The 8 mohs-micrographic surgery physician records with the nearest ZIP codes

  1. Ramona Behshad, M.D.Saint Louis, MO 631221124223011
  2. Martha Council, MDSaint Louis, MO 631411245432244
  3. Kelly Macarthur, MDCreve Coeur, MO 631411801234174
  4. Basia Michalski - McNeely, MDSaint Louis, MO 631411356861637
  5. Alexander Aria, MDSaint Louis, MO 631041932604105
  6. George Hruza, M.D.Chesterfield, MO 630171013912906
  7. Mark Kory, M.D.Chesterfield, MO 630171326034489
  8. Ashley McGuinness, MDChesterfield, MO 630171851882716

Common questions

What is Lee S. Portnoff, M.D.'s NPI number?

Lee S. Portnoff, M.D.'s National Provider Identifier (NPI) is 1043214505, issued on Jun 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lee S. Portnoff, M.D. located?

The NPPES record lists a practice address at 4 Dunleith Dr, Saint Louis, MO, 63124. Phone: (314) 705-0644. Providers update this record themselves, so call before visiting.

How can I verify Lee S. Portnoff, M.D.'s license?

NPPES lists Missouri license number R9730, 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 Lee S. Portnoff, M.D. prescribe under Medicare Part D?

In 2024, Lee S. Portnoff, M.D. had 163 Medicare Part D claims for 115 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.

What is Lee S. Portnoff, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.