Mary Mahoney, M.D.
NPI 1750352621 · Surgery Physician · Eureka, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Mahoney, M.D. is a Surgery Physician provider in Eureka, CA (NPI 1750352621).
Provider details
- NPI number
- 1750352621
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G48569 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
121 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) |
|---|---|---|
| Partial Removal of Breast19301 | 27 | $630 |
| Imaging of Lymph Nodes During Surgery38900 | 26 | $132 |
| Biopsy Or Removal of Deep Lymph Nodes of Underarm38525 | 22 | $216 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 17 | $168 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 35 | 11 |
| Tamoxifen Citrate | 28 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-30
- Last updated
- 2024-02-02
- Certified
- 2024-02-02
Frequently asked questions
- What is Mary Mahoney's NPI number?
- Mary Mahoney's National Provider Identifier (NPI) is 1750352621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Mahoney's specialty?
- Mary Mahoney is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Mahoney located?
- Mary Mahoney's practice location on file with NPPES is 636 Harris St Ste a, Eureka, CA 95503-4448.
- What is Mary Mahoney's phone number?
- The practice phone number listed in the NPPES registry for Mary Mahoney is (707) 476-0690.
- Does Mary Mahoney accept Medicare?
- Mary Mahoney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Mahoney's NPI active?
- Yes — Mary Mahoney's NPI (1750352621) is active in the NPPES registry as of the last update on 2024-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.