LARRY W MARKHAM (M.D.) – Adult Congenital Heart Disease Physician, NPI 1912959743
Adult Congenital Heart Disease Physician
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Profile Insights
NPPES metrics only — not quality of care.
722 CARDIOVASCULAR DISEASE (CARDIOLOGY) in IN
Provider Addresses for LARRY W MARKHAM (M.D.)
705 Riley Hospital Dr
RI 1134
Indianapolis, IN 462025109
Phone: (317) 944-8906
Fax: (317) 944-9330
Type: Location
3841 GREEN HILLS VILLAGE DR STE 200
NASHVILLE, TN 372152691
Phone:
Type: Mailing
1301 MEDICAL CENTER DR
NASHVILLE, TN 372320028
Phone: (615) 322-5000
Type: Location
PO BOX 719094
CHICAGO, IL 606779318
Phone: (317) 777-6435
Fax: (317) 777-6644
Type: Mailing
Indianapolis, Marion County, Indiana, United States
INDIANAPOLIS, IN 462061026
Phone: (317) 777-6435
Fax: (317) 777-6644
Type: Mailing
Riley Hospital for Children, 705, Riley Hospital Drive, Indianapolis, Marion, Indiana, 46202, United States
RI 1134
INDIANAPOLIS, IN 462025109
Phone: (317) 944-8906
Fax: (317) 944-9330
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2018-01-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20180111001360 | I | Cardiovascular Disease (Cardiology) | IN | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 21 | 21 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 20 | 20 | $0 |
Insurance plans in this area (ZIP 46202)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Infectious Disease, Pediatric Medicine | IL | |
| Cardiovascular Disease (Cardiology), Pediatric Medicine, Pediatric Medicine | IL | |
| Endocrinology, Pediatric Medicine | IN | |
| Critical Care (Intensivists), Pediatric Medicine | IN | |
| Infectious Disease, Pediatric Medicine | IN | |
| Clinical Psychologist | OH | |
| Nephrology, Pediatric Medicine | IL | |
| Cardiovascular Disease (Cardiology), Pediatric Medicine | IN | |
| Critical Care (Intensivists), Pediatric Medicine | OH | |
| Infectious Disease, Pediatric Medicine | IN |
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