Douglas Sidell, MD
NPI 1629229836 · Pediatric Otolaryngology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Sidell, MD is a Pediatric Otolaryngology Physician provider in Palo Alto, CA (NPI 1629229836).
Provider details
- NPI number
- 1629229836
- Entity type
- Individual
- Primary specialty
- Pediatric Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A107296 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36 across 2 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
- 2008-10-07
- Last updated
- 2024-04-29
- Certified
- 2024-04-29
Frequently asked questions
- What is Douglas Sidell's NPI number?
- Douglas Sidell's National Provider Identifier (NPI) is 1629229836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Sidell's specialty?
- Douglas Sidell is listed in the NPPES registry with a primary specialty of Pediatric Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Sidell located?
- Douglas Sidell's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Douglas Sidell's phone number?
- The practice phone number listed in the NPPES registry for Douglas Sidell is (650) 497-8000.
- Does Douglas Sidell accept Medicare?
- Douglas Sidell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Sidell's NPI active?
- Yes — Douglas Sidell's NPI (1629229836) is active in the NPPES registry as of the last update on 2024-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.