Mark Gendleman, M.D.
NPI 1457339863 · Specialist · Evanston, IL
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gendleman, M.D. is a Specialist provider in Evanston, IL (NPI 1457339863).
Provider details
- NPI number
- 1457339863
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036045834 (IL)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,576 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 1,291 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 749 | $94 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 543 | $64 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 459 | $132 |
| Biopsy of Related Skin Growth, First Growth11102 | 132 | $97 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 85 | 61 |
| Hydrocortisone | 63 | 36 |
| Betamethasone Dipropionate | 44 | 30 |
| Mupirocin | 42 | 37 |
| Metronidazole | 20 | 14 |
| Prednisone | 16 | — |
| Doxycycline Hyclate | 12 | — |
| Ketoconazole | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-05
- Last updated
- 2015-03-11
Frequently asked questions
- What is Mark Gendleman's NPI number?
- Mark Gendleman's National Provider Identifier (NPI) is 1457339863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gendleman's specialty?
- Mark Gendleman is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Gendleman located?
- Mark Gendleman's practice location on file with NPPES is 2500 Ridge Ave, Evanston, IL 60201-2455.
- What is Mark Gendleman's phone number?
- The practice phone number listed in the NPPES registry for Mark Gendleman is (847) 475-4556.
- Does Mark Gendleman accept Medicare?
- Mark Gendleman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gendleman's NPI active?
- Yes — Mark Gendleman's NPI (1457339863) is active in the NPPES registry as of the last update on 2015-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.