Physician Profile
Unclaimed ProfileAbout CALHOUN
Based in Charleston, SC, John B Calhoun, M.D. is listed in the NPI registry under internal medicine. John graduated from Medical College of Georgia School of Medicine in 2012.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Calhoun?
Dr. Calhoun is an internal medicine in Charleston, SC. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
What is Dr. Calhoun's address?
Dr. Calhoun is listed at 169 ASHLEY AVE ROOM 202 MAIN HOSPITAL MSC333, 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. Calhoun?
The number on file is (843) 792-4047. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Calhoun?
Dr. Calhoun's National Provider Identifier is 1770845141. 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. Calhoun train?
Dr. Calhoun attended Medical College of Georgia School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Calhoun have?
Dr. Calhoun has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Calhoun perform?
According to Medicare billing data, Dr. Calhoun provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Calhoun's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Calhoun. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (843) 792-4047
- Email not available
Practice Locations
169 ASHLEY AVE ROOM 202 MAIN HOSPITAL MSC333
Charleston, SC 29425
Procedures Most Often Billed to Medicare
6,577 services · 3,450 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
122 |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
62 |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
1,163 |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
204 |
| Injection, ceftriaxone sodium, per 250 mg | Drug given | J0696 |
97 |
| Injection, ketorolac tromethamine, per 15 mg | Drug given | J1885 |
88 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
620 |
| 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' | Billing code | G2211 |
533 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
531 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
381 |
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 internal medicines at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 32 related providers in 4 groups
Other internal medicines in Charleston 8
Same specialty, same city.
Trained at Medical College of Georgia School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Medical College of Georgia School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in SC who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.