Robert Clayton, M.D.
NPI 1558436907 · Internal Medicine Physician · Suwanee, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Clayton, M.D. is a Internal Medicine Physician provider in Suwanee, GA (NPI 1558436907).
Provider details
- NPI number
- 1558436907
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 035836 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,768 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 554 | $125 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 315 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 233 | $14 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 155 | $16 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19) and Influenza Virus Types a and B87636 | 82 | $140 |
| Automated Urinalysis Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 255 | 123 |
| Tramadol Hcl | 213 | 47 |
| Azithromycin | 201 | 104 |
| Levothyroxine Sodium | 184 | 36 |
| Pantoprazole Sodium | 165 | 49 |
| Alprazolam | 157 | 26 |
| Amlodipine Besylate | 156 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$77 across 4 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
- 2006-11-21
- Last updated
- 2009-12-03
Frequently asked questions
- What is Robert Clayton's NPI number?
- Robert Clayton's National Provider Identifier (NPI) is 1558436907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Clayton's specialty?
- Robert Clayton is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Clayton located?
- Robert Clayton's practice location on file with NPPES is 4060 Johns Creek Pkwy, Suwanee, GA 30024-1230.
- What is Robert Clayton's phone number?
- The practice phone number listed in the NPPES registry for Robert Clayton is (678) 205-0525.
- Does Robert Clayton accept Medicare?
- Robert Clayton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Clayton's NPI active?
- Yes — Robert Clayton's NPI (1558436907) is active in the NPPES registry as of the last update on 2009-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.