Collin Ross, PHD
NPI 1629182050 · Physician Assistant · San Ysidro, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Collin Ross, PHD is a Physician Assistant provider in San Ysidro, CA (NPI 1629182050).
Provider details
- NPI number
- 1629182050
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- PA16058 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
53 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 53 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (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 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 183 | 80 |
| Metformin Hcl | 182 | 87 |
| Lisinopril | 166 | 71 |
| Gabapentin | 142 | 68 |
| Losartan Potassium | 134 | 53 |
| Amlodipine Besylate | 127 | 55 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2023-03-07
- Certified
- 2020-01-03
Frequently asked questions
- What is Collin Ross's NPI number?
- Collin Ross's National Provider Identifier (NPI) is 1629182050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Collin Ross's specialty?
- Collin Ross is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Collin Ross located?
- Collin Ross's practice location on file with NPPES is 4004 Beyer Blvd, San Ysidro, CA 92173-2007.
- What is Collin Ross's phone number?
- The practice phone number listed in the NPPES registry for Collin Ross is (619) 662-4100.
- Does Collin Ross accept Medicare?
- Collin Ross is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Collin Ross's NPI active?
- Yes — Collin Ross's NPI (1629182050) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.