Charles Opalak, M.D.
NPI 1821484882 · Neurological Surgery Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Opalak, M.D. is a Neurological Surgery Physician provider in Greenville, SC (NPI 1821484882).
Provider details
- NPI number
- 1821484882
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 87499 (SC)
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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
452 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 154 | $52 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 77 | $67 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 48 | $36 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $85 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 29 | $238 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 102 | 22 |
| Diazepam | 33 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 25 | — |
| Methocarbamol | 25 | 17 |
| Gabapentin | 21 | — |
| Tizanidine Hcl | 21 | — |
| Tramadol Hcl | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33 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
Additional practice locations (1)
- 701 Grove Rd.Department of SurgeryGreenville, SC 29605Phone: (864) 455-7000Fax: (864) 797-7155
Registry dates
- Enumerated
- 2015-04-07
- Last updated
- 2023-10-24
- Certified
- 2023-10-24
Frequently asked questions
- What is Charles Opalak's NPI number?
- Charles Opalak's National Provider Identifier (NPI) is 1821484882, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Opalak's specialty?
- Charles Opalak is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Opalak located?
- Charles Opalak's practice location on file with NPPES is 111 Doctors Dr, Greenville, SC 29605-5622.
- What is Charles Opalak's phone number?
- The practice phone number listed in the NPPES registry for Charles Opalak is (864) 797-7150.
- Does Charles Opalak accept Medicare?
- Charles Opalak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Opalak's NPI active?
- Yes — Charles Opalak's NPI (1821484882) is active in the NPPES registry as of the last update on 2023-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.