Jessica Diaz, MD
NPI 1578645404 · Family Medicine Physician · Medford, OR
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jessica Diaz, MD is a Family Medicine Physician provider in Medford, OR (NPI 1578645404).
Provider details
- NPI number
- 1578645404
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD25640 (OR)
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
19 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
57 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 34 | $10 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 23 | $9 |
Typical Medicare-allowed amounts for these services range $9–$10 (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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 125 | 42 |
| Atorvastatin Calcium | 80 | 24 |
| Levothyroxine Sodium | 79 | 21 |
| Omeprazole | 74 | 26 |
| Gabapentin | 69 | 20 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 64 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2020-01-23
- Certified
- 2020-01-23
Frequently asked questions
- What is Jessica Diaz's NPI number?
- Jessica Diaz's National Provider Identifier (NPI) is 1578645404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica Diaz's specialty?
- Jessica Diaz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jessica Diaz located?
- Jessica Diaz's practice location on file with NPPES is 730 Biddle Rd, Medford, OR 97504-6116.
- What is Jessica Diaz's phone number?
- The practice phone number listed in the NPPES registry for Jessica Diaz is (541) 494-3800.
- Does Jessica Diaz accept Medicare?
- Jessica Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jessica Diaz's NPI active?
- Yes — Jessica Diaz's NPI (1578645404) is active in the NPPES registry as of the last update on 2020-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.