Paul Simon, MD
NPI 1659060424 · Family Medicine Physician · San Marcos, CA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Simon, MD is a Family Medicine Physician provider in San Marcos, CA (NPI 1659060424).
Provider details
- NPI number
- 1659060424
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A205012 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 16 |
| Gabapentin | 14 |
| Omeprazole | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 13 |
| Lisinopril | 12 |
| Losartan Potassium | 12 |
| Levothyroxine Sodium | 11 |
| Pantoprazole Sodium | 11 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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
- 2023-05-05
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is Paul Simon's NPI number?
- Paul Simon's National Provider Identifier (NPI) is 1659060424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Simon's specialty?
- Paul Simon is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Simon located?
- Paul Simon's practice location on file with NPPES is 150 Valpreda Rd, San Marcos, CA 92069-2973.
- What is Paul Simon's phone number?
- The practice phone number listed in the NPPES registry for Paul Simon is (760) 736-6767.
- Does Paul Simon accept Medicare?
- Paul Simon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Simon's NPI active?
- Yes — Paul Simon's NPI (1659060424) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.