Mary Grizzard, FNP-C
NPI 1821509266 · Family Nurse Practitioner · Nashville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Grizzard, FNP-C is a Family Nurse Practitioner provider in Nashville, TN (NPI 1821509266).
Provider details
- NPI number
- 1821509266
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 23250 (TN)
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 tenure33% of score
8 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 39 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 34 | — |
| Rivaroxabanbrand: Xarelto | 30 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 28 | 14 |
| Prednisone | 28 | — |
| Levothyroxine Sodium | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13,057 across 49 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
- 2017-10-12
- Last updated
- 2019-09-05
Frequently asked questions
- What is Mary Grizzard's NPI number?
- Mary Grizzard's National Provider Identifier (NPI) is 1821509266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Grizzard's specialty?
- Mary Grizzard is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Grizzard located?
- Mary Grizzard's practice location on file with NPPES is 250 25th Ave N Ste 200, Nashville, TN 37203.
- What is Mary Grizzard's phone number?
- The practice phone number listed in the NPPES registry for Mary Grizzard is (615) 986-4366.
- Does Mary Grizzard accept Medicare?
- Mary Grizzard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Grizzard's NPI active?
- Yes — Mary Grizzard's NPI (1821509266) is active in the NPPES registry as of the last update on 2019-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.