Crystal Grantham
NPI 1336633791 · Family Nurse Practitioner · Richton, MS
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Grantham is a Family Nurse Practitioner provider in Richton, MS (NPI 1336633791).
Provider details
- NPI number
- 1336633791
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 902689 (MS)
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
119 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 49 | $96 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 49 | $137 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 21 | $54 |
Typical Medicare-allowed amounts for these services range $54–$137 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 34 | 33 |
| Prednisone | 29 | 25 |
| Ondansetronbrand: Ondansetron Odt | 29 | 27 |
| Doxycycline Hyclate | 25 | 21 |
| Cephalexin | 17 | 17 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 14 | 14 |
| Sulfamethoxazole/Trimethoprim |
Practice location
Mailing address
Additional practice locations (1)
- 178 Highway 24 ECentreville, MS 39631-4171Phone: (601) 890-0500Fax: (601) 645-5873
Registry dates
- Enumerated
- 2018-06-19
- Last updated
- 2026-05-07
- Certified
- 2026-05-07
Frequently asked questions
- What is Crystal Grantham's NPI number?
- Crystal Grantham's National Provider Identifier (NPI) is 1336633791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Grantham's specialty?
- Crystal Grantham is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Grantham located?
- Crystal Grantham's practice location on file with NPPES is 210 Bay Ave, Richton, MS 39476-9665.
- What is Crystal Grantham's phone number?
- The practice phone number listed in the NPPES registry for Crystal Grantham is (601) 788-9222.
- Does Crystal Grantham accept Medicare?
- Crystal Grantham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Grantham's NPI active?
- Yes — Crystal Grantham's NPI (1336633791) is active in the NPPES registry as of the last update on 2026-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.