John Frederick, MD
NPI 1841347937 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Frederick, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Charlotte, NC (NPI 1841347937).
Provider details
- NPI number
- 1841347937
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2016-01623 (NC)
Specialties & taxonomies
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianPrimary208G00000XLicense 2016-01623 (NC)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
178 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 56 | $161 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 36 | $16 |
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 34 | $696 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $124 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 19 | $213 |
Typical Medicare-allowed amounts for these services range $16–$696 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,500 across 46 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
Additional practice locations (4)
- 15110 John J Delaney DrSte 200Charlotte, NC 28277-3544Phone: (704) 667-3840
- 1237 Harding PlSte 4300Charlotte, NC 28204Phone: (704) 373-0212
- 10650 Park RdCharlotte, NC 28210-8538Phone: (704) 667-3840
- 200 Medical Park DrSte 230Concord, NC 28025-2982Phone: (704) 403-1349
Registry dates
- Enumerated
- 2007-01-04
- Last updated
- 2024-07-16
Frequently asked questions
- What is John Frederick's NPI number?
- John Frederick's National Provider Identifier (NPI) is 1841347937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Frederick's specialty?
- John Frederick is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is John Frederick located?
- John Frederick's practice location on file with NPPES is 1237 Harding Pl, Charlotte, NC 28204.
- What is John Frederick's phone number?
- The practice phone number listed in the NPPES registry for John Frederick is (704) 373-0212.
- Does John Frederick accept Medicare?
- John Frederick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Frederick's NPI active?
- Yes — John Frederick's NPI (1841347937) is active in the NPPES registry as of the last update on 2024-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.