Nicholas Karo, MD
NPI 1245727502 · Internal Medicine Physician · Christiansburg, VA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Karo, MD is a Internal Medicine Physician provider in Christiansburg, VA (NPI 1245727502).
Provider details
- NPI number
- 1245727502
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,037 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 386 | $113 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 359 | $75 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 117 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 111 | $165 |
| Critical Care, First 30-74 Minutes99291 | 33 | $202 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 22 | 21 |
| Metoprolol Succinate | 12 | 12 |
| Doxycycline Hyclate | 11 | 11 |
| Pantoprazole Sodium | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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
Additional practice locations (1)
- 1900 Electric RdSalem, VA 24153-7474Phone: (484) 651-2842
Registry dates
- Enumerated
- 2018-04-21
- Last updated
- 2022-04-07
- Certified
- 2022-04-07
Frequently asked questions
- What is Nicholas Karo's NPI number?
- Nicholas Karo's National Provider Identifier (NPI) is 1245727502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Karo's specialty?
- Nicholas Karo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Karo located?
- Nicholas Karo's practice location on file with NPPES is 2900 Lamb Cir, Christiansburg, VA 24073-6344.
- What is Nicholas Karo's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Karo is (540) 731-2000.
- Does Nicholas Karo accept Medicare?
- Nicholas Karo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Karo's NPI active?
- Yes — Nicholas Karo's NPI (1245727502) is active in the NPPES registry as of the last update on 2022-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.