Joanna Marmaro, NP-C
NPI 1104363142 · Family Nurse Practitioner · Dallas, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Marmaro, NP-C is a Family Nurse Practitioner provider in Dallas, TX (NPI 1104363142).
Provider details
- NPI number
- 1104363142
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- AP133087 (TX)
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
9 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
2,240 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 | 478 | $76 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 392 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 335 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 299 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 201 | $106 |
| Ferritin (blood Protein) Level82728 | 77 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 106 | 84 |
| Promethazine Hcl | 47 | 37 |
| Lidocaine/Prilocainebrand: Lidocaine-Prilocaine | 46 | 41 |
| Potassium Chloride | 31 | 22 |
| Dexamethasone | 20 | 11 |
| Pantoprazole Sodium | 18 | — |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$334 across 16 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
- 2017-01-29
- Last updated
- 2018-01-08
Frequently asked questions
- What is Joanna Marmaro's NPI number?
- Joanna Marmaro's National Provider Identifier (NPI) is 1104363142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Marmaro's specialty?
- Joanna Marmaro is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joanna Marmaro located?
- Joanna Marmaro's practice location on file with NPPES is 8196 Walnut Hill Ln Ste 100, Dallas, TX 75231-7001.
- What is Joanna Marmaro's phone number?
- The practice phone number listed in the NPPES registry for Joanna Marmaro is (214) 739-4175.
- Does Joanna Marmaro accept Medicare?
- Joanna Marmaro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Marmaro's NPI active?
- Yes — Joanna Marmaro's NPI (1104363142) is active in the NPPES registry as of the last update on 2018-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.