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Edit this profileAt a glance
- 171 Ashley Ave, Charleston, SC 29425
About Dr. Gregg
David Gregg, MD is a healthcare provider in Charleston, SC specializing in internal medicine. David trained at Columbia University College of Physicians and Surgeons, graduating in 1999. David is also listed as specializing in cardiovascular disease. According to Medicare claims data, David cared for 1,996 Medicare patients across 2,176 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, ultrasound of heart with color-depicted blood flow, rate, direction and valve function, and ultrasound of heart with color-depicted blood flow, rate and valve function. This provider record is associated with NPI 1265540264.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (843) 792-1414
- Email not available
Practice Locations
171 ASHLEY AVE
Charleston, SC 29425
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
2,176 services · 1,996 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| 3d radiographic procedure | Imaging | 76376 |
48 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
486 | More often than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
400 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
182 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
148 | More than most peers in Internal Medicine |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
130 | More than most peers in Internal Medicine |
| Ultrasound of heart, follow-up | Treatment | 93308 |
126 | More than most peers in Internal Medicine |
| Heart muscle strain imaging | Treatment | 93356 |
87 | More often than most peers in Internal Medicine |
| Ultrasound of heart with probe in esophagus, with report | Treatment | 93312 |
82 | More than most peers in Internal Medicine |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
66 | More often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 25 related providers in 4 groups
Other internists in Charleston 7
Same specialty, same city.
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Also performs 3d radiographic procedure 2
Providers in SC who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Gregg?
Dr. Gregg is an internist in Charleston, SC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Dr. Gregg's address?
Dr. Gregg is listed at 171 Ashley Ave, Charleston, SC 29425. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Gregg?
The number on file is (843) 792-1414. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Gregg's NPI number?
Dr. Gregg's National Provider Identifier is 1265540264. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Gregg train?
Dr. Gregg attended Columbia University College of Physicians and Surgeons, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Gregg been practicing?
Dr. Gregg has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Gregg perform?
According to Medicare billing data, Dr. Gregg performs imaging including 3d radiographic procedure; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Gregg confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gregg. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.