Grantley Joseph, M.D.
NPI 1861506016 · Internal Medicine Physician · Decatur, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grantley Joseph, M.D. is a Internal Medicine Physician provider in Decatur, GA (NPI 1861506016).
Provider details
- NPI number
- 1861506016
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 039376 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
941 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 393 | $128 |
| Hemoglobin A1c Level83036 | 153 | $9 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 144 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 78 | $130 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 50 | $14 |
| Administration of Influenza Virus VaccineG0008 | 46 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 153 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,158 | 365 |
| Amlodipine Besylate | 1,092 | 328 |
| Metformin Hcl | 466 | 143 |
| Lisinopril | 323 | 97 |
| Metoprolol Succinate | 297 | 93 |
| Rosuvastatin Calcium | 289 | 100 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-17
- Last updated
- 2014-11-25
Frequently asked questions
- What is Grantley Joseph's NPI number?
- Grantley Joseph's National Provider Identifier (NPI) is 1861506016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grantley Joseph's specialty?
- Grantley Joseph is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grantley Joseph located?
- Grantley Joseph's practice location on file with NPPES is 4153b Flat Shoals Pkwy, Decatur, GA 30034-4189.
- What is Grantley Joseph's phone number?
- The practice phone number listed in the NPPES registry for Grantley Joseph is (404) 585-5049.
- Does Grantley Joseph accept Medicare?
- Grantley Joseph is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grantley Joseph's NPI active?
- Yes — Grantley Joseph's NPI (1861506016) is active in the NPPES registry as of the last update on 2014-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.