Mark Rolfsen, MD
NPI 1578053856 · Internal Medicine Physician · Encinitas, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Rolfsen, MD is a Internal Medicine Physician provider in Encinitas, CA (NPI 1578053856).
Provider details
- NPI number
- 1578053856
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
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 tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 25 |
| Budesonide/Glycopyr/Formoterolbrand: Breztri Aerosphere | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-13
- Last updated
- 2021-06-28
- Certified
- 2021-06-28
Frequently asked questions
- What is Mark Rolfsen's NPI number?
- Mark Rolfsen's National Provider Identifier (NPI) is 1578053856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Rolfsen's specialty?
- Mark Rolfsen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Rolfsen located?
- Mark Rolfsen's practice location on file with NPPES is 354 Santa Fe Dr, Encinitas, CA 92024-5182.
- What is Mark Rolfsen's phone number?
- The practice phone number listed in the NPPES registry for Mark Rolfsen is (760) 633-6501.
- Does Mark Rolfsen accept Medicare?
- Mark Rolfsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Rolfsen's NPI active?
- Yes — Mark Rolfsen's NPI (1578053856) is active in the NPPES registry as of the last update on 2021-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.