Tracy Preston, FNP
NPI 1255630398 · Family Nurse Practitioner · Loma Linda, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tracy Preston, FNP is a Family Nurse Practitioner provider in Loma Linda, CA (NPI 1255630398).
Provider details
- NPI number
- 1255630398
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 20611 (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 tenure28% of score
15 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
111 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $66 |
| 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 | 21 | $14 |
Typical Medicare-allowed amounts for these services range $14–$92 (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 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 193 | 60 |
| Metformin Hcl | 153 | 40 |
| Gabapentin | 129 | 38 |
| Ibuprofen | 100 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 96 | 27 |
| Diclofenac Sodium | 96 | 28 |
| Amlodipine Besylate | 95 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-03-15
- Last updated
- 2024-09-18
- Certified
- 2024-09-18
Frequently asked questions
- What is Tracy Preston's NPI number?
- Tracy Preston's National Provider Identifier (NPI) is 1255630398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tracy Preston's specialty?
- Tracy Preston is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tracy Preston located?
- Tracy Preston's practice location on file with NPPES is 25455 Barton Rd, Loma Linda, CA 92354-3128.
- What is Tracy Preston's phone number?
- The practice phone number listed in the NPPES registry for Tracy Preston is (909) 558-6600.
- Does Tracy Preston accept Medicare?
- Tracy Preston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tracy Preston's NPI active?
- Yes — Tracy Preston's NPI (1255630398) is active in the NPPES registry as of the last update on 2024-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.