Marckenley Isaac, MD
NPI 1689234106ActiveIndividual· Anesthesiology· Marietta, GA
Anesthesiology (MD) with Wellstar Medical Group LLC and 1 other group, practicing in Marietta, Georgia. 66 Medicare patients in 2024, $7,408 paid; nearly all of their 217 Part D prescriptions were generic (95%). Becton, Dickinson and Company was the largest of 3 companies reporting payments in 2025, $127.84 in all, mostly food and beverage. Lists Wellstar Cobb Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1689234106 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 17, 2019 |
| Last updated in NPPES | May 19, 2026 |
| Certified by provider | May 19, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 100785 | GA |
| Internal Medicine | 207R00000X | MT219044 | PA |
| Anesthesiology | 207L00000X | 322523 | NY |
| Anesthesiology, Pain Medicine | 207LP2900X | 100785 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (GA); Practitioner - Anesthesiology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 66 |
|---|---|
| Services billed | 70 across 27 procedure codes |
| Paid by Medicare | $7,408 |
Part D prescriptions in 2024
| Prescriptions (claims) | 217 · 223 30-day fills |
|---|---|
| Patients | 113 |
| Total drug cost | $6,335 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Anesthesiology |
| Secondary specialties | Pain Management |
Medical groups
- Wellstar Medical Group LLCMarietta, GA · 3,093 clinicians
- Mak Anesthesia Holdings, LLCRoswell, GA · 385 clinicians
Hospital affiliations
- Wellstar Cobb Medical CenterAustell, GA
- Wellstar Kennestone Regional Medical CenterMarietta, GA
- Wellstar Paulding Medical CenterHiram, GA
Industry payments (Open Payments)
- 2025$127.84 · 3 payments from 3 companies
- 2024$210.66 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Becton, Dickinson and Company | $74.56 | 1 |
| Mindray Ds USA, Inc. | $38.77 | 1 |
| Medtronic, Inc. | $14.51 | 1 |
What the 2025 payments were for
- Food and Beverage$127.84 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other anesthesiologists in Marietta
- 1184240137
- 1023376399
- 1033164256
- 1033256490
- 1053452979
- 1154375319
- 1154391613
- 1154469179
- 1154640498
- 1184835159
- 1194728980
- 1194958900
All 78 anesthesiologists in Marietta · All anesthesiologists in Georgia