Mary Steinhoff, FNP
NPI 1538525381 · Family Nurse Practitioner · Fallbrook, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Steinhoff, FNP is a Family Nurse Practitioner provider in Fallbrook, CA (NPI 1538525381).
Provider details
- NPI number
- 1538525381
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95003293 (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 tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
950 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 420 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 165 | $116 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 68 | $83 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 63 | $118 |
| Automated Urinalysis Test81003 | 53 | $2 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 50 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 167 | 61 |
| Levothyroxine Sodium | 139 | 47 |
| Lisinopril | 103 | 39 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 102 | 50 |
| Azithromycin | 85 | 81 |
| Hydrochlorothiazide | 84 | 31 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$400 across 15 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
Additional practice locations (1)
- 28780 Single Oak Dr Ste 260Temecula, CA 92590-5534Phone: (951) 676-4193
Registry dates
- Enumerated
- 2016-01-09
- Last updated
- 2020-02-20
- Certified
- 2020-02-20
Frequently asked questions
- What is Mary Steinhoff's NPI number?
- Mary Steinhoff's National Provider Identifier (NPI) is 1538525381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Steinhoff's specialty?
- Mary Steinhoff is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Steinhoff located?
- Mary Steinhoff's practice location on file with NPPES is 521 E Elder St Ste 105, Fallbrook, CA 92028-3082.
- What is Mary Steinhoff's phone number?
- The practice phone number listed in the NPPES registry for Mary Steinhoff is (760) 728-8344.
- Does Mary Steinhoff accept Medicare?
- Mary Steinhoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Steinhoff's NPI active?
- Yes — Mary Steinhoff's NPI (1538525381) is active in the NPPES registry as of the last update on 2020-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.