Sonja Grigg, MD
NPI 1902297294 · Internal Medicine Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonja Grigg, MD is a Internal Medicine Physician provider in Charlotte, NC (NPI 1902297294).
Provider details
- NPI number
- 1902297294
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2018-00091 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 44 | 21 |
| Amlodipine Besylate | 36 | 15 |
| Levothyroxine Sodium | 34 | 17 |
| Atorvastatin Calcium | 34 | 13 |
| Lisinopril | 27 | 15 |
| Hydrochlorothiazide | 23 | — |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (2)
- 1493 Cambridge StCambridge, MA 02139-1047Phone: (617) 665-1068
- 210 E Trade St Ste D230Charlotte, NC 28202Phone: (704) 384-7085
Registry dates
- Enumerated
- 2015-02-09
- Last updated
- 2023-10-18
- Certified
- 2023-10-18
Frequently asked questions
- What is Sonja Grigg's NPI number?
- Sonja Grigg's National Provider Identifier (NPI) is 1902297294, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Grigg's specialty?
- Sonja Grigg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sonja Grigg located?
- Sonja Grigg's practice location on file with NPPES is 1942 E 7th St Ste 200, Charlotte, NC 28204-2418.
- What is Sonja Grigg's phone number?
- The practice phone number listed in the NPPES registry for Sonja Grigg is (704) 384-7085.
- Does Sonja Grigg accept Medicare?
- Sonja Grigg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonja Grigg's NPI active?
- Yes — Sonja Grigg's NPI (1902297294) is active in the NPPES registry as of the last update on 2023-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.