Mason Chew, MSN, FNP-C
NPI 1184333080 · Family Nurse Practitioner · San Diego, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mason Chew, MSN, FNP-C is a Family Nurse Practitioner provider in San Diego, CA (NPI 1184333080).
Provider details
- NPI number
- 1184333080
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, FNP-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 95023368 (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
3 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
662 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) |
|---|---|---|
| Removal of Skin and Tissue, 20.0 Sq Cm Or Less11042 | 278 | $104 |
| Removal of Muscle And/Or Tissue, 20.0 Sq Cm Or Less11043 | 223 | $212 |
| Application of Skin Substitute Graft to Wound of Trunk, Arms, Or Legs, 25.0 Sq Cm Or Less of Wound 100.0 Sq Cm Or Less15271 | 161 | $116 |
Typical Medicare-allowed amounts for these services range $104–$212 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-11-18
- Last updated
- 2022-11-18
- Certified
- 2022-11-18
Frequently asked questions
- What is Mason Chew's NPI number?
- Mason Chew's National Provider Identifier (NPI) is 1184333080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mason Chew's specialty?
- Mason Chew is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mason Chew located?
- Mason Chew's practice location on file with NPPES is 2039 Thomas Ave, San Diego, CA 92109-4617.
- What is Mason Chew's phone number?
- The practice phone number listed in the NPPES registry for Mason Chew is (661) 618-4390.
- Does Mason Chew accept Medicare?
- Mason Chew is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mason Chew's NPI active?
- Yes — Mason Chew's NPI (1184333080) is active in the NPPES registry as of the last update on 2022-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.