DR. RYAN AMSTRONG MARTEN (M.D.) – Hospitalist Physician, NPI 1174866560
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,405 INTERNAL MEDICINE in GA
Provider Addresses for DR. RYAN AMSTRONG MARTEN (M.D.)
6325 HOSPITAL PKWY
EMORY JOHNS CREEK HOSPITAL
JOHNS CREEK, GA 300975775
Phone: (678) 474-7038
Fax: (678) 474-7033
Type: Mailing
4700 WATERS AVE
SAVANNAH, GA 314046220
Phone: (912) 350-0583
Fax: (912) 350-7270
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $66.
Total Amount is formed as General ($66) + Research ($0) + Ownership ($0) = $66.
Last reported payment date: 2024-10-25 • Largest payer in this snapshot: Boston Scientific Corporation ($43).
Total Amount
$66
General + Research + Ownership
Payments
3
Total payment records
General Amount
$66
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $43 |
| ABIOMED | $23 |
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: 2021-11-03
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 |
|---|---|---|---|---|
| I20211103001751 | I | Internal Medicine | AL | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 225 | 89 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 136 | 125 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 113 | 53 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 107 | 95 | $0 |
| 99291 | Critical care, first 30-74 minutes | 18 | 15 | $0 |
Insurance plans in this area (ZIP 30097)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Emergency Medicine | AL | |
| Emergency Medicine | OH | |
| Emergency Medicine, Internal Medicine | NY | |
| Emergency Medicine | AL | |
| Emergency Medicine, Internal Medicine | LA | |
| Emergency Medicine, Infectious Disease | AL | |
| Internal Medicine | AL | |
| Internal Medicine | WV | |
| Nurse Practitioner | AL | |
| Nurse Practitioner | AL |
Reviews
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