Timothy Mahanes, MD
NPI 1124552658 · Family Medicine Physician · Eureka, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Mahanes, MD is a Family Medicine Physician provider in Eureka, CA (NPI 1124552658).
Provider details
- NPI number
- 1124552658
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A183482 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 57 | 24 |
| Atorvastatin Calcium | 51 | 28 |
| Gabapentin | 46 | 21 |
| Lisinopril | 38 | 16 |
| Losartan Potassium | 34 | 17 |
| Tamsulosin Hcl | 28 | 13 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-11
- Last updated
- 2023-11-03
- Certified
- 2023-11-03
Frequently asked questions
- What is Timothy Mahanes's NPI number?
- Timothy Mahanes's National Provider Identifier (NPI) is 1124552658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Mahanes's specialty?
- Timothy Mahanes is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Mahanes located?
- Timothy Mahanes's practice location on file with NPPES is 2700 Dolbeer St, Eureka, CA 95501-4736.
- What is Timothy Mahanes's phone number?
- The practice phone number listed in the NPPES registry for Timothy Mahanes is (707) 445-8121.
- Does Timothy Mahanes accept Medicare?
- Timothy Mahanes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Mahanes's NPI active?
- Yes — Timothy Mahanes's NPI (1124552658) is active in the NPPES registry as of the last update on 2023-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.