Karl Dannehl, M.D.
NPI 1356401954 · Internal Medicine Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Dannehl, M.D. is a Internal Medicine Physician provider in Atlanta, GA (NPI 1356401954).
Provider details
- NPI number
- 1356401954
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 023582 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,401 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 315 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 297 | $91 |
| Automated Urinalysis Test81003 | 244 | $2 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 185 | $131 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 138 | $128 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 79 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 101 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 257 | 72 |
| Levothyroxine Sodium | 193 | 43 |
| Amlodipine Besylate | 183 | 47 |
| Atorvastatin Calcium | 181 | 46 |
| Losartan Potassium | 151 | 41 |
| Valsartan | 138 | 27 |
| Famotidine | 128 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$75 across 4 records (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
- 2006-12-12
- Last updated
- 2020-12-09
- Certified
- 2020-12-09
Frequently asked questions
- What is Karl Dannehl's NPI number?
- Karl Dannehl's National Provider Identifier (NPI) is 1356401954, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Dannehl's specialty?
- Karl Dannehl is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Dannehl located?
- Karl Dannehl's practice location on file with NPPES is 1800 Howell Mill Rd Nw Ste 525, Atlanta, GA 30318-2538.
- What is Karl Dannehl's phone number?
- The practice phone number listed in the NPPES registry for Karl Dannehl is (404) 367-3070.
- Does Karl Dannehl accept Medicare?
- Karl Dannehl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Dannehl's NPI active?
- Yes — Karl Dannehl's NPI (1356401954) is active in the NPPES registry as of the last update on 2020-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.