Physician Profile
Unclaimed ProfileAbout BLACKWELDER
Mark Blackwelder, M.D. practices internal medicine in Ruston, LA. Mark is a 1985 graduate of Louisiana State University School of Medicine in Shreveport. According to Medicare claims data, Mark cared for 916 Medicare patients across 4,938 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (318) 255-3690
- Email not available
Practice Locations
1200 S FARMERVILLE ST
Ruston, LA 71270
Procedures Most Often Billed to Medicare
4,938 services · 916 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
98 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
15 |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,560 |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
1,000 |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
134 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
870 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
576 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
269 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
156 |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
92 |
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 5
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 — 26 related providers in 4 groups
Other internal medicines in Ruston 3
Same specialty, same city.
Trained at Louisiana State University School of Medicine in Shreveport 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Louisiana State University School of Medicine in Shreveport 7
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 LA who bill this service to Medicare most often.
Common questions
What is Dr. Blackwelder's specialty?
Dr. Blackwelder is an internal medicine in Ruston, LA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Blackwelder?
Dr. Blackwelder is listed at 1200 S FARMERVILLE ST, Ruston, LA 71270. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Blackwelder?
The number on file is (318) 255-3690. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Blackwelder's NPI number?
Dr. Blackwelder's National Provider Identifier is 1245200880. 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
What is Dr. Blackwelder's medical education?
Dr. Blackwelder attended Louisiana State University School of Medicine in Shreveport, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Blackwelder been practicing?
Dr. Blackwelder has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Blackwelder known for?
According to Medicare billing data, Dr. Blackwelder provides treatments such as injection of drug or substance under skin or into muscle and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Blackwelder confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Blackwelder. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.