Teresa Helsten, M.D.
NPI 1265408678 · Hematology & Oncology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Helsten, M.D. is a Hematology & Oncology Physician provider in La Jolla, CA (NPI 1265408678).
Provider details
- NPI number
- 1265408678
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A71996 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
493 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 191 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 153 | $148 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 149 | $99 |
Typical Medicare-allowed amounts for these services range $17–$148 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 104 | 34 |
| Letrozole | 78 | 23 |
| Ribociclib Succinatebrand: Kisqali | 65 | — |
| Palbociclibbrand: Ibrance | 46 | — |
| Abemaciclibbrand: Verzenio | 29 | — |
| Ondansetronbrand: Ondansetron Odt | 24 | 11 |
| Exemestane | 22 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-24
- Last updated
- 2011-03-18
Frequently asked questions
- What is Teresa Helsten's NPI number?
- Teresa Helsten's National Provider Identifier (NPI) is 1265408678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Helsten's specialty?
- Teresa Helsten is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Teresa Helsten located?
- Teresa Helsten's practice location on file with NPPES is 3855 Health Sciences Dr, La Jolla, CA 92093-1503.
- What is Teresa Helsten's phone number?
- The practice phone number listed in the NPPES registry for Teresa Helsten is (858) 822-6195.
- Does Teresa Helsten accept Medicare?
- Teresa Helsten is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Helsten's NPI active?
- Yes — Teresa Helsten's NPI (1265408678) is active in the NPPES registry as of the last update on 2011-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.