Mathias Zemel, M.D.
NPI 1649381310 · Specialist · Paterson, NJ
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mathias Zemel, M.D. is a Specialist provider in Paterson, NJ (NPI 1649381310).
Provider details
- NPI number
- 1649381310
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MA040185 (NJ)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
47 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $100 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $182 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 | $138 |
Typical Medicare-allowed amounts for these services range $100–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 126 | 65 |
| Ketoconazole | 116 | 43 |
| Ammonium Lactate | 97 | 37 |
| Triamcinolone Acetonide | 62 | 42 |
| Hydrocortisone | 55 | 32 |
| Mupirocin | 23 | 18 |
| Metronidazole | 17 | — |
| Tacrolimus | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$159 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mathias Zemel's NPI number?
- Mathias Zemel's National Provider Identifier (NPI) is 1649381310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mathias Zemel's specialty?
- Mathias Zemel is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mathias Zemel located?
- Mathias Zemel's practice location on file with NPPES is 675 Broadway, Paterson, NJ 07514-1444.
- What is Mathias Zemel's phone number?
- The practice phone number listed in the NPPES registry for Mathias Zemel is (973) 279-1232.
- Does Mathias Zemel accept Medicare?
- Mathias Zemel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mathias Zemel's NPI active?
- Yes — Mathias Zemel's NPI (1649381310) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.