Kevin Isaak, MD
NPI 1255837233 · Internal Medicine Physician · Marietta, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kevin Isaak, MD is a Internal Medicine Physician provider in Marietta, GA (NPI 1255837233).
Provider details
- NPI number
- 1255837233
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
365 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 111 | $119 |
| Advance Care Planning, First 30 Minutes99497 | 74 | $76 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 71 | $174 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 65 | $79 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 31 | $30 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$116 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-30
- Last updated
- 2021-07-15
- Certified
- 2021-07-15
Frequently asked questions
- What is Kevin Isaak's NPI number?
- Kevin Isaak's National Provider Identifier (NPI) is 1255837233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kevin Isaak's specialty?
- Kevin Isaak is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kevin Isaak located?
- Kevin Isaak's practice location on file with NPPES is 677 Church St Ne Lowr Level, Marietta, GA 30060-1101.
- What is Kevin Isaak's phone number?
- The practice phone number listed in the NPPES registry for Kevin Isaak is (770) 793-5186.
- Does Kevin Isaak accept Medicare?
- Kevin Isaak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kevin Isaak's NPI active?
- Yes — Kevin Isaak's NPI (1255837233) is active in the NPPES registry as of the last update on 2021-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.