Diana Mercado, M.D.
NPI 1255543849 · Infectious Disease Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Mercado, M.D. is a Infectious Disease Physician provider in Jacksonville, FL (NPI 1255543849).
Provider details
- NPI number
- 1255543849
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ME107426 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,344 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 522 | $116 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 520 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 232 | $169 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 39 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $88 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 33 | 21 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 26 | — |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 24 | — |
| Vancomycin Hcl | 24 | — |
| Cefazolin Sodium | 23 | — |
| Ertapenem Sodiumbrand: Ertapenem | 21 | — |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$456 across 20 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
Registry dates
- Enumerated
- 2007-05-04
- Last updated
- 2025-01-13
- Certified
- 2025-01-13
Frequently asked questions
- What is Diana Mercado's NPI number?
- Diana Mercado's National Provider Identifier (NPI) is 1255543849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Mercado's specialty?
- Diana Mercado is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Mercado located?
- Diana Mercado's practice location on file with NPPES is 820 Prudential Dr Ste 515, Jacksonville, FL 32207-8207.
- What is Diana Mercado's phone number?
- The practice phone number listed in the NPPES registry for Diana Mercado is (904) 396-4886.
- Does Diana Mercado accept Medicare?
- Diana Mercado is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Mercado's NPI active?
- Yes — Diana Mercado's NPI (1255543849) is active in the NPPES registry as of the last update on 2025-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.