Karl Koenig, M.D.
NPI 1609874692 · Nephrology Physician · Richmond, VA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Koenig, M.D. is a Nephrology Physician provider in Richmond, VA (NPI 1609874692).
Provider details
- NPI number
- 1609874692
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101048551 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 46 | 19 |
| Hydralazine Hcl | 29 | — |
| Terazosin Hcl | 17 | — |
| Carvedilol | 17 | — |
| Metoprolol Tartrate | 13 | — |
| Allopurinol | 12 | — |
| Escitalopram Oxalate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-13
- Last updated
- 2016-11-11
Frequently asked questions
- What is Karl Koenig's NPI number?
- Karl Koenig's National Provider Identifier (NPI) is 1609874692, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Koenig's specialty?
- Karl Koenig is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Koenig located?
- Karl Koenig's practice location on file with NPPES is 7001 W Broad St, Richmond, VA 23294-3701.
- What is Karl Koenig's phone number?
- The practice phone number listed in the NPPES registry for Karl Koenig is (804) 673-2722.
- Does Karl Koenig accept Medicare?
- Karl Koenig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Koenig's NPI active?
- Yes — Karl Koenig's NPI (1609874692) is active in the NPPES registry as of the last update on 2016-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.