Wendy Mak, D.O.
NPI 1508250036 · Family Medicine Physician · Northridge, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wendy Mak, D.O. is a Family Medicine Physician provider in Northridge, CA (NPI 1508250036).
Provider details
- NPI number
- 1508250036
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
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 tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
83% 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 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 285 | 94 |
| Amlodipine Besylate | 139 | 51 |
| Losartan Potassium | 120 | 43 |
| Metformin Hcl | 84 | 28 |
| Empagliflozinbrand: Jardiance | 81 | 17 |
| Olmesartan Medoxomil | 61 | 20 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$286 across 8 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
- 2015-03-23
- Last updated
- 2021-05-11
- Certified
- 2021-05-11
Frequently asked questions
- What is Wendy Mak's NPI number?
- Wendy Mak's National Provider Identifier (NPI) is 1508250036, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wendy Mak's specialty?
- Wendy Mak is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wendy Mak located?
- Wendy Mak's practice location on file with NPPES is 18460 Roscoe Blvd, Northridge, CA 91325-4107.
- What is Wendy Mak's phone number?
- The practice phone number listed in the NPPES registry for Wendy Mak is (818) 885-5480.
- Does Wendy Mak accept Medicare?
- Wendy Mak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wendy Mak's NPI active?
- Yes — Wendy Mak's NPI (1508250036) is active in the NPPES registry as of the last update on 2021-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.