Heather Mullen, MD, MSJ
NPI 1720185382 · Family Medicine Physician · Santa Clarita, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Mullen, MD, MSJ is a Family Medicine Physician provider in Santa Clarita, CA (NPI 1720185382).
Provider details
- NPI number
- 1720185382
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MSJ
- Sex
- Female
- Sole proprietor
- No
- License
- C141514 (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
19 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 |
|---|---|---|
| Prednisone | 49 | 46 |
| Doxycycline Monohydrate | 39 | 38 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 33 | 32 |
| Cephalexin | 29 | 29 |
| Meloxicam | 26 | 26 |
| Azithromycin | 24 | 23 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 24 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-17
- Last updated
- 2021-11-29
Frequently asked questions
- What is Heather Mullen's NPI number?
- Heather Mullen's National Provider Identifier (NPI) is 1720185382, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Mullen's specialty?
- Heather Mullen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Heather Mullen located?
- Heather Mullen's practice location on file with NPPES is 27107 Tourney Rd, Santa Clarita, CA 91355-1860.
- What is Heather Mullen's phone number?
- The practice phone number listed in the NPPES registry for Heather Mullen is (888) 778-5000.
- Does Heather Mullen accept Medicare?
- Heather Mullen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Mullen's NPI active?
- Yes — Heather Mullen's NPI (1720185382) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.