Marissa Digregorio, DNP, AGNP
NPI 1700561321 · Adult Health Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Digregorio, DNP, AGNP is a Adult Health Nurse Practitioner provider in Saint Louis, MO (NPI 1700561321).
Provider details
- NPI number
- 1700561321
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, AGNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2023027196 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
3 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
663 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $104 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 94 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 80 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 78 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $74 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 33 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 81 | 78 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 79 | 75 |
| Furosemide | 61 | 31 |
| Methocarbamol | 55 | 45 |
| Azithromycin | 52 | 50 |
| Prednisone | 35 | 28 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 33 | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$528 across 28 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
- 2023-06-20
- Last updated
- 2026-01-16
- Certified
- 2026-01-16
Frequently asked questions
- What is Marissa Digregorio's NPI number?
- Marissa Digregorio's National Provider Identifier (NPI) is 1700561321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Digregorio's specialty?
- Marissa Digregorio is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Digregorio located?
- Marissa Digregorio's practice location on file with NPPES is 5034 Griffin Rd, Saint Louis, MO 63128-3418.
- What is Marissa Digregorio's phone number?
- The practice phone number listed in the NPPES registry for Marissa Digregorio is (314) 843-7333.
- Does Marissa Digregorio accept Medicare?
- Marissa Digregorio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Digregorio's NPI active?
- Yes — Marissa Digregorio's NPI (1700561321) is active in the NPPES registry as of the last update on 2026-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.