NPI registry status
Active
2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1568429223 MD
Verify on CMS → Thomas Chandler, MD
Sleep Medicine (Internal Medicine) Physician in Murrells Inlet, 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 932 in Sleep Medicine (Internal Medicine) Physician, 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
3K
Medicare Part D claims · 608 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
42%
generic claims · 58% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$1.7K
73 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Thomas Chandler, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 3,026 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 3K
- Part D claims, 2024
- 42%
- generic prescribing
- Likely
- board-certified (heuristic)
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 Thomas Chandler, MD
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 1568429223), first enumerated 04/27/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,026 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.7K in reported industry payments (73 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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.
CMS NPPES provider registry desk
NPI 1568429223 · Sleep Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-NEUTRAL · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1568429223
- ENUM-LEGACY 2006
- TAX-NARROW 932
- MIPS-NEUTRAL 75/100
- RX-MID 3,026
- BOOK-THIN 12 in South Carolina
- PHOTO-ENUM Bruce Stewart, MD · 2006
Thomas Chandler, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
3,026 ≥ 88th percentile 88% 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
✓
Board certification likely (heuristic, not verified)
Thomas Chandler, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Thomas Chandler, MD?
CMS neutral score, not measuredPrimary specialty
Sleep Medicine (Internal Medicine) Physician
Medicare Part D claims
3,026 135% vs specialty avg
MIPS final score
75/100
Specialty distribution in South Carolina
How Sleep Medicine (Internal Medicine) Physician compares to other specialties among South Carolina providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1568429223 |
|---|---|
| Specialty | Sleep Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/27/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Hospital and facility affiliations
Facilities where Thomas Chandler, MD 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.
Inlet Pulmonary Critical Care And Sleep Medicine, PA
Murrells Inlet, 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).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Thomas Chandler, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.7K
Largest payer
GlaxoSmithKline, LLC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Brand-heavy
Thomas Chandler, MD - brand share 58.0%
Sleep Medicine (Internal Medicine) Physician average
58% brand-name claims vs 42% generic, on 3,026 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.
3,026
Total Claims
$1.6M
Total Drug Cost
608
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,023.8
- Total Day Supply
- 110,026
- Brand vs Generic
- 58% brand / 42% generic
- Brand Drug Cost
- $1.3M
- Generic Drug Cost
- $233K
- Antibiotic Claims
- 234
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.80
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 72, 65-74: 261, 75-84: 228, 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 Thomas Chandler, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trelegy Ellipta
Trelegy Ellipta
822 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
453 claims
- Prednisone 225
Prednisone
225 claims
- Breo Ellipta 207
Breo Ellipta
207 claims
- Montelukast Sodium 150
Montelukast Sodium
150 claims
- Breztri Aerosphere 134
Breztri Aerosphere
134 claims
- Azithromycin 74
Azithromycin
74 claims
- Levofloxacin 63
Levofloxacin
63 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 822 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 453 |
| Prednisone | 225 |
| Breo Ellipta Fluticasone/Vilanterol | 207 |
| Montelukast Sodium | 150 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 134 |
| Azithromycin | 74 |
| Levofloxacin | 63 |
| Doxycycline Hyclate | 52 |
| Symbicort Budesonide/Formoterol Fumarate | 52 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sleep Medicine (Internal Medicine) Physician in SC →
All providers in South Carolina →
Compare specialties →
Sleep Medicine (Internal Medicine) Physician Overview
How Thomas Chandler, MD fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.
932
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,288
Avg Claims per Provider
Thomas Chandler, MD's 3,026 claims are above the specialty average of 1,288.
Nationwide Sleep Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chandler, both outside South Carolina so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Sleep Medicine (Internal Medicine) Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Chandler.
One of 12 Sleep Medicine (Internal Medicine) Physician providers enrolled in South Carolina, 5 are shown here.
Dr. Talal Baki
MD
Rock Hill, SC
Dr. Jeffrey Cox
M.D.
Rock Hill, SC
Dr. Luis De La Cruz
MD
Spartanburg, SC
Dr. Randall Evans
MD
Hilton Head, SC
Dr. Terry Grainger
MD
Columbia, SC
Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Thomas Chandler, MD's specialty? ▼
Thomas Chandler, MD specializes in Sleep Medicine (Internal Medicine) Physician and practices in Murrells Inlet, South Carolina. Credentials: MD.
How much does Thomas Chandler, MD prescribe under Medicare Part D? ▼
In 2024, Thomas Chandler, MD wrote 3,026 Medicare Part D claims totaling $1.6M in drug costs for 608 beneficiaries.
What is Thomas Chandler, MD's Medicare quality score? ▼
Thomas Chandler, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Thomas Chandler, MD located? ▼
Thomas Chandler, MD is located at 4057 HIGHWAY 17, Murrells Inlet, SC, 29576. Phone: (843) 652-4800.
What is Thomas Chandler, MD's NPI number? ▼
Thomas Chandler, MD's National Provider Identifier (NPI) is 1568429223, issued on 04/27/2006.
Does Thomas Chandler, MD prescribe more brand-name or generic drugs? ▼
Thomas Chandler, MD's prescribing is 58% brand-name and 42% generic drugs by claim count, with $1.3M in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 932 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,288 Medicare Part D claims per year.
What drugs does Thomas Chandler, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Thomas Chandler, MD's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Chandler, MD accept Medicare? ▼
Thomas Chandler, MD appears in CMS Medicare data with 3,026 Part D claims and 608 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Chandler, MD's credentials? ▼
Thomas Chandler, MD's NPI is 1568429223 with credentials MD. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.