NPI registry status
Active
2026 NPPES data Critical Care Medicine Registered Nurse NPI 1104068840 P.T.A, R.N,
Verify on CMS → Sharon Johnson, P.T.A, R.N,
Critical Care Medicine Registered Nurse in Columbia, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,929 in Critical Care Medicine Registered Nurse, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
12K
Medicare Part D claims · 241 beneficiaries · Critical Care Medicine Registered Nurse avg: 832
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Sharon Johnson, P.T.A, R.N, filed 12,339 Medicare Part D claims in 2024 as a Critical Care Medicine Registered Nurse in Columbia, South Carolina, prescribing 92% generic.
- 12K
- Part D claims, 2024
- 92%
- generic prescribing
- ≥98th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Sharon Johnson, P.T.A, R.N,
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1104068840), first enumerated 03/26/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 12,339 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Johnson with other Critical Care Medicine Registered Nurse providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in South Carolina
- Amber Al-Abed Charleston, SC
- Jonathan Anderson Charleston, SC
- Lindsi Angel, CRNA Conway, SC
- Keagan Ashalintubbi Moncks Corner, SC
- Ashleigh Bailey Fountain Inn, SC
- Steven Bailey, CRNA West Columbia, SC
Other specialties in Columbia: Behavior Technician (1,110) · Pharmacist (601) · Family Nurse Practitioner (572) · Mental Health Counselor (499)
CMS NPPES provider registry desk
NPI 1104068840 · Critical Care Medicine Registered Nurse
NPI-10 · ENUM-MID · TAX-MID · RX-HEAVY · BOOK-THIN · PHOTO-ENUM
- NPI-10 1104068840
- ENUM-MID 2009
- TAX-MID 7K Critical Care
- RX-HEAVY 12K claims
- BOOK-THIN 159 in South Carolina
- PHOTO-ENUM Brent Marquette, RN · 2009
Sharon Johnson, P.T.A, R.N,'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
12,339 ≥ 98th percentile 98% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Sharon Johnson, P.T.A, R.N,?
Quality data not reportedPrimary specialty
Critical Care Medicine Registered Nurse
Medicare Part D claims
12,339 15× vs specialty avg
Specialty distribution in South Carolina
How Critical Care Medicine Registered Nurse compares to other specialties among South Carolina providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Critical Care Medicine Registered Nurse. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1104068840 |
|---|---|
| Specialty | Critical Care Medicine Registered Nurse |
| Credentials | P.T.A, R.N, |
| Gender | Female |
| NPI Issued | 03/26/2009 |
Hospital and facility affiliations
Facilities where Sharon Johnson, P.T.A, R.N, bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
SC House Calls Inc
West Columbia, SC
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Sharon Johnson, P.T.A, R.N, - brand share 8.0%
Critical Care Medicine Registered Nurse average
8% brand-name claims vs 92% generic, on 12,339 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
12,339
Total Claims
$631K
Total Drug Cost
241
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,998.733
- Total Day Supply
- 339,122
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $388K
- Generic Drug Cost
- $239K
- Opioid Claims
- 109 (0.9% rate)
- Antibiotic Claims
- 278
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 2.35
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 35, 65-74: 85, 75-84: 74, 85+: 47
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Sharon Johnson, P.T.A, R.N, prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
856 claims
- Amlodipine Besylate
Amlodipine Besylate
669 claims
- Quetiapine Fumarate
Quetiapine Fumarate
497 claims
- Furosemide
Furosemide
392 claims
- Losartan Potassium 315
Losartan Potassium
315 claims
- Levothyroxine Sodium 298
Levothyroxine Sodium
298 claims
- Trazodone Hcl 266
Trazodone Hcl
266 claims
- Omeprazole 242
Omeprazole
242 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 856 |
| Amlodipine Besylate | 669 |
| Quetiapine Fumarate | 497 |
| Furosemide | 392 |
| Losartan Potassium | 315 |
| Levothyroxine Sodium | 298 |
| Trazodone Hcl | 266 |
| Omeprazole | 242 |
| Famotidine | 236 |
| Pantoprazole Sodium | 229 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine Registered Nurse in SC →
All providers in South Carolina →
Compare specialties →
Critical Care Medicine Registered Nurse Overview
How Sharon Johnson, P.T.A, R.N, fits within the Critical Care Medicine Registered Nurse landscape nationally.
6,929
Critical Care Medicine Registered Nurse Providers in US
53
States with Critical Care Medicine Registered Nurse
832
Avg Claims per Provider
Sharon Johnson, P.T.A, R.N,'s 12,339 claims are above the specialty average of 832.
Nationwide Critical Care Medicine Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnson, both outside South Carolina so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine Registered Nurse Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Johnson.
One of 159 Critical Care Medicine Registered Nurse providers enrolled in South Carolina, 11 are shown on this page.
Ansley Balogh
Charleston, SC
Kevin Barkley
RN
Sumter, SC
Jalasia Barnett
BSN, RN
Walterboro, SC
Matthew Bauer
CRNA
Charleston, SC
Brooke Bellows
Greenville, SC
Compare Critical Care Medicine Registered Nurse nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sharon Johnson, P.T.A, R.N,'s specialty? ▼
Sharon Johnson, P.T.A, R.N, specializes in Critical Care Medicine Registered Nurse and practices in Columbia, South Carolina. Credentials: P.T.A, R.N,.
How much does Sharon Johnson, P.T.A, R.N, prescribe under Medicare Part D? ▼
In 2024, Sharon Johnson, P.T.A, R.N, wrote 12,339 Medicare Part D claims totaling $631K in drug costs for 241 beneficiaries.
Where is Sharon Johnson, P.T.A, R.N, located? ▼
Sharon Johnson, P.T.A, R.N, is located at 111 DOCTOR CIR, Columbia, SC, 29203. Phone: (800) 491-0909.
What is Sharon Johnson, P.T.A, R.N,'s NPI number? ▼
Sharon Johnson, P.T.A, R.N,'s National Provider Identifier (NPI) is 1104068840, issued on 03/26/2009.
Does Sharon Johnson, P.T.A, R.N, prescribe more brand-name or generic drugs? ▼
Sharon Johnson, P.T.A, R.N,'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $388K in brand drug costs.
Does Sharon Johnson, P.T.A, R.N, prescribe opioids? ▼
Yes, Sharon Johnson, P.T.A, R.N, had 109 opioid claims in 2024 with an opioid prescribing rate of 0.9%.
How many Critical Care Medicine Registered Nurse providers are there in the US? ▼
There are 6,929 Critical Care Medicine Registered Nurse providers across 53 states in the US. The average Critical Care Medicine Registered Nurse provider writes 832 Medicare Part D claims per year.
What drugs does Sharon Johnson, P.T.A, R.N, prescribe most often? ▼
Based on 2024 Medicare Part D data, Sharon Johnson, P.T.A, R.N,'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sharon Johnson, P.T.A, R.N, accept Medicare? ▼
Sharon Johnson, P.T.A, R.N, appears in CMS Medicare data with 12,339 Part D claims and 241 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sharon Johnson, P.T.A, R.N,'s credentials? ▼
Sharon Johnson, P.T.A, R.N,'s NPI is 1104068840 with credentials P.T.A, R.N,. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.