Aaron Parrish, MD
NPI 1366799868 · Surgery Physician · Los Gatos, CA
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Parrish, MD is a Surgery Physician provider in Los Gatos, CA (NPI 1366799868).
Provider details
- NPI number
- 1366799868
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A128270 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
586 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 110 | $134 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 95 | $155 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 84 | $275 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 83 | $104 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 67 | $199 |
| Diagnostic Exam of Anus Using an Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 46 | 46 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 28 | 28 |
| Metronidazole | 17 | 16 |
| Neomycin Sulfate | 14 | 14 |
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,901 across 13 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
Additional practice locations (1)
- 1000 W Carson St # 461Torrance, CA 90502-2004Phone: (310) 222-2700Fax: (310) 533-1841
Registry dates
- Enumerated
- 2012-08-14
- Last updated
- 2021-05-13
- Certified
- 2021-05-13
Frequently asked questions
- What is Aaron Parrish's NPI number?
- Aaron Parrish's National Provider Identifier (NPI) is 1366799868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Parrish's specialty?
- Aaron Parrish is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Parrish located?
- Aaron Parrish's practice location on file with NPPES is 14850 Los Gatos Blvd, Los Gatos, CA 95032-2011.
- What is Aaron Parrish's phone number?
- The practice phone number listed in the NPPES registry for Aaron Parrish is (408) 358-2868.
- Does Aaron Parrish accept Medicare?
- Aaron Parrish is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Parrish's NPI active?
- Yes — Aaron Parrish's NPI (1366799868) is active in the NPPES registry as of the last update on 2021-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.