Mahr Elder, D.D.S., M.D.
NPI 1841301371 · Oral and Maxillofacial Surgery (Dentist) · Novato, CA
Enrolled with Medicare as Practitioner - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahr Elder, D.D.S., M.D. is a Oral and Maxillofacial Surgery (Dentist) provider in Novato, CA (NPI 1841301371).
Provider details
- NPI number
- 1841301371
- Entity type
- Individual
- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)Dental Providers
- Credential
- D.D.S., M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 46586 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 449 | 379 |
| Chlorhexidine Gluconate | 411 | 361 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 285 | 240 |
| Ibuprofen | 99 | 92 |
| Azithromycin | 78 | 63 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 44 | 41 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,048 across 16 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
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Mahr Elder's NPI number?
- Mahr Elder's National Provider Identifier (NPI) is 1841301371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mahr Elder's specialty?
- Mahr Elder is listed in the NPPES registry with a primary specialty of Oral and Maxillofacial Surgery (Dentist) (Dental Providers).
- Where is Mahr Elder located?
- Mahr Elder's practice location on file with NPPES is 1805 Novato Blvd, Novato, CA 94947-2934.
- What is Mahr Elder's phone number?
- The practice phone number listed in the NPPES registry for Mahr Elder is (415) 892-1190.
- Does Mahr Elder accept Medicare?
- Mahr Elder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mahr Elder's NPI active?
- Yes — Mahr Elder's NPI (1841301371) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.