Maria Carbo-Gruver, CRNP
NPI 1336833276 · Primary Care Nurse Practitioner · Reading, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Carbo-Gruver, CRNP is a Primary Care Nurse Practitioner provider in Reading, PA (NPI 1336833276).
Provider details
- NPI number
- 1336833276
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN740659 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 67 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 184 | 70 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 131 | 33 |
| Lisinopril | 117 | 43 |
| Amlodipine Besylate | 109 | 36 |
| Gabapentin | 95 | 27 |
| Omeprazole | 84 | 30 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$956 across 44 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
- 2023-06-05
- Last updated
- 2023-08-15
- Certified
- 2023-08-15
Frequently asked questions
- What is Maria Carbo-Gruver's NPI number?
- Maria Carbo-Gruver's National Provider Identifier (NPI) is 1336833276, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Carbo-Gruver's specialty?
- Maria Carbo-Gruver is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Carbo-Gruver located?
- Maria Carbo-Gruver's practice location on file with NPPES is 838 Penn St, Reading, PA 19602-1108.
- What is Maria Carbo-Gruver's phone number?
- The practice phone number listed in the NPPES registry for Maria Carbo-Gruver is (610) 988-4838.
- Does Maria Carbo-Gruver accept Medicare?
- Maria Carbo-Gruver is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Carbo-Gruver's NPI active?
- Yes — Maria Carbo-Gruver's NPI (1336833276) is active in the NPPES registry as of the last update on 2023-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.