Christopher Mascarinas, M.D.
NPI 1952596744 · Otolaryngology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Mascarinas, M.D. is a Otolaryngology Physician provider in Walnut Creek, CA (NPI 1952596744).
Provider details
- NPI number
- 1952596744
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A117137 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 65 | 25 |
| Ipratropium Bromide | 54 | 19 |
| Azelastine Hcl | 49 | 19 |
| Pantoprazole Sodium | 45 | 19 |
| Doxycycline Monohydrate | 20 | 16 |
| Omeprazole | 19 | — |
| Prednisone | 19 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-13
- Last updated
- 2021-12-15
Frequently asked questions
- What is Christopher Mascarinas's NPI number?
- Christopher Mascarinas's National Provider Identifier (NPI) is 1952596744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Mascarinas's specialty?
- Christopher Mascarinas is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Mascarinas located?
- Christopher Mascarinas's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Christopher Mascarinas's phone number?
- The practice phone number listed in the NPPES registry for Christopher Mascarinas is (925) 295-4100.
- Does Christopher Mascarinas accept Medicare?
- Christopher Mascarinas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Mascarinas's NPI active?
- Yes — Christopher Mascarinas's NPI (1952596744) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.