LEE S. PORTNOFF, M.D., P.C.
LEE S. PORTNOFF, M.D., P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003025560, based in Saint Louis, MO. The organization lists 3 taxonomy classifications, with MOHS-Micrographic Surgery Physician recorded as primary.
Getting there
Here is what surrounds this office in Saint Louis, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 0.31 mi away. The nearest transit stop is 0.40 mi away, served by Clayton at Ballas.
Getting here and what is nearby
Parking 303 ft ~2 min
Parking 409 ft ~2 min
Transit Missouri Baptist Hospital Loop 0.20 mi ~5 min
Parking 0.31 mi ~7 min
Gas station Shell 0.38 mi ~8 min
12200 Clayton Road, Saint Louis 63131
Transit Clayton at Ballas 0.40 mi ~8 min
Transit Clayton at Ballas 0.40 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| R9730 | MO | Dermatology Physician |
| R9730 | MO | Procedural Dermatology Physician |
| R9730 | MO | MOHS-Micrographic Surgery Physician primary |
This provider holds licence R9730 issued in MO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What MOHS-Micrographic Surgery covers
The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S. NUCC Health Care Provider Taxonomy, code 207ND0101X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207N00000X | Dermatology Physician | R9730 | MO | |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | R9730 | MO | |
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | R9730 | MO | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003025560 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 22, 2007 |
| Last updated | Sep 20, 2007 |
| Status | Active |
| Practice address |
3009 N BALLAS RD STE 235A Saint Louis, MO 63131 (314) 993-2909 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 2 | 5 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 1 | 5 | 3 |
Sum = 40 · next multiple of 10 = 40 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.