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Dermatology

Otter Q. Aspen, MD

Sees patients in Middletown, NJ · Northfield, NJ · New Jersey

Summary

Dr. Otter Q. Aspen, MD is a dermatologist at 1000 Route 35, Suite 200, Middletown, NJ 07748. Phone: (212) 283-3000. Accepts Medicare assignment. In 2024, Otter Q. Aspen had 1,062 Original Medicare patients and 5,280 services. NPI 1356316020. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologist (Medicare lists Dermatology)
  • Address: 1000 Route 35, Suite 200, Middletown, NJ 07748 · Directions (1 more location)
  • Phone: (212) 283‑3000
  • Medicare: Accepts Medicare assignment
  • Group practice: Schweiger Dermatology PC
  • Medical school: Harvard Medical School · graduated 2005 (21 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Otter Q. Aspen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Otter Q. Aspen accept Medicare assignment?
Yes. Medicare's clinician data says Otter Q. Aspen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Otter Q. Aspen see?
In 2024, CMS data shows 1,062 Original Medicare patients and 5,280 services for Otter Q. Aspen. This counts Original Medicare only and measures volume, not quality.
What is Otter Q. Aspen's NPI number?
1356316020. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Otter Q. Aspen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients1,062
Services billed to Medicare5,280
Different services or procedures80
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,240 services
  2. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)863 services
  3. Pathology examination of specimen during surgery, each additional tissue block (88332)434 services
  4. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks (17312)352 services
  5. Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.1-30.0 sq cm (14041)261 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis51%
  • Ischemic heart disease42%
  • Diabetes34%
  • Chronic kidney disease27%

Practice locations

Addresses where Otter Q. Aspen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Otter Q. Aspen as a member of this group (CMS data updated October 2, 2026).

  • Schweiger Dermatology PC186 clinicians in the group

Specialties

Find other Dermatology doctors in New Jersey →

Other dermatologists in New Jersey

Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.

All dermatologists in New Jersey →

Other clinicians in Schweiger Dermatology PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356316020
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians