Paul Chasan, M.D. FACS
NPI 1477871127 · Ambulatory Surgical Clinic/Center · Del Mar, CA
Paul Chasan, M.D. FACS is a Ambulatory Surgical Clinic/Center provider in Del Mar, CA (NPI 1477871127).
Provider details
- NPI number
- 1477871127
- Entity type
- Individual
- Primary specialty
- Ambulatory Surgical Clinic/CenterAmbulatory Health Care Facilities
- Credential
- M.D. FACS
- Sex
- Male
- Sole proprietor
- Yes
- License
- G68600 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 13 | 13 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 12 | 11 |
| Ondansetronbrand: Ondansetron Odt | 11 | 11 |
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.
$5,651 across 22 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
Registry dates
- Enumerated
- 2010-05-05
- Last updated
- 2026-01-06
- Certified
- 2026-01-06
Frequently asked questions
- What is Paul Chasan's NPI number?
- Paul Chasan's National Provider Identifier (NPI) is 1477871127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Chasan's specialty?
- Paul Chasan is listed in the NPPES registry with a primary specialty of Ambulatory Surgical Clinic/Center (Ambulatory Health Care Facilities).
- Where is Paul Chasan located?
- Paul Chasan's practice location on file with NPPES is 1431 Camino Del Mar, Del Mar, CA 92014-2509.
- What is Paul Chasan's phone number?
- The practice phone number listed in the NPPES registry for Paul Chasan is (858) 450-1555.
- Is Paul Chasan's NPI active?
- Yes — Paul Chasan's NPI (1477871127) is active in the NPPES registry as of the last update on 2026-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.