NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1073004883 MD
Verify on CMS → William Sessions, MD
Critical Care Medicine (Internal Medicine) Physician in Germantown, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,646 in Critical Care 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
54
Medicare Part D claims · 17 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
50%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.3/100
▼ 10 pts below national avg 83.5 · Mid-tier
Industry payments
$317.38
8 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
William Sessions, MD reported a CMS MIPS final score of 73.3/100 - below the 83.5 national average - and filed 54 Medicare Part D claims in 2023.
- 73.3/100
- MIPS score · -10 vs avg
- 54
- Part D claims, 2023
- 50%
- 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 William Sessions, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1073004883), first enumerated 05/29/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 54 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)
Reported a CMS MIPS final score of 73.3/100 in the Quality Payment Program — a federal quality measure, not a patient review.
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
Industry payment transparency
$317.38 in reported industry payments (8 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 1073004883 · Critical Care Medicine (Internal Medicine) Physician
NPI-10 · ENUM-RECENT · TAX-MID · MIPS-LOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1073004883
- ENUM-RECENT 2018
- TAX-MID 7K Critical Care
- MIPS-LOW 73.3/100
- RX-TRACE 54
- BOOK-THIN 130 in Tennessee
- PHOTO-FINISH Vas Devan · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Sessions · this …
Sessions · this provider
73.3 MIPS pts
- Alfred Lardizaba…
Alfred Lardizabal
73.3 MIPS pts
- Vas Devan · near
Vas Devan
73.3 MIPS pts
- Douglas Rennert …
Douglas Rennert
73.3 MIPS pts
- Yonatan Greenste…
Yonatan Greenstein
73.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
William Sessions, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
73 ≥ 11th percentile 11% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where William Sessions, MD sits
This provider among critical care medicine (internal medicine) physician peers
Across the 1,548 critical care medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Sessions, MD writes more Part D claims than 12% of them and scores higher on MIPS quality than 11% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one critical care medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is William Sessions, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Sessions, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 William Sessions, MD?
Below national averagePrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
54 95% vs specialty avg
MIPS final score
73.3/100 10.2 pts vs avg
Specialty distribution in Tennessee
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
William Sessions, MD's 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 73.3/100
- vs 83.5 national avg · 2023 performance year
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 | 1073004883 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/29/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.2945
Final Score
Measured-score avg: 83.5
48.6866
Quality
78.4195
Cost
Reporting: Group practice
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 William Sessions, MD. Source: openpaymentsdata.cms.gov.
Total received
$317
Largest payer
Pulmonx Corporation
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
William Sessions, MD - brand share 50.0%
Critical Care Medicine (Internal Medicine) Physician average
50% brand-name claims vs 50% generic, on 54 2023 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 2023.
54
Total Claims
$29K
Total Drug Cost
17
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 94
- Total Day Supply
- 2,764
- Brand vs Generic
- 50% brand / 50% generic
- Brand Drug Cost
- $26K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 66.6 years
- Avg HCC Risk Score
- 3.40
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Prednisone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in TN →
All providers in Tennessee →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How William Sessions, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider
William Sessions, MD's 54 claims are below the specialty average of 1,069.
Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sessions, both outside Tennessee so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (73.3 here).
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Sessions.
One of 130 Critical Care Medicine (Internal Medicine) Physician providers enrolled in Tennessee, 5 are shown here.
Frequently Asked Questions
What is William Sessions, MD's specialty? ▼
William Sessions, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Germantown, Tennessee. Credentials: MD.
How much does William Sessions, MD prescribe under Medicare Part D? ▼
In 2023, William Sessions, MD wrote 54 Medicare Part D claims totaling $29K in drug costs for 17 beneficiaries.
What is William Sessions, MD's Medicare quality score? ▼
William Sessions, MD has a CMS MIPS Final Score of 73.3/100 (Quality: 48.7, Cost: 78.4). 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 William Sessions, MD located? ▼
William Sessions, MD is located at 7691 POPLAR AVE, Germantown, TN, 38138. Phone: (901) 516-1290.
What is William Sessions, MD's NPI number? ▼
William Sessions, MD's National Provider Identifier (NPI) is 1073004883, issued on 05/29/2018.
Does William Sessions, MD prescribe more brand-name or generic drugs? ▼
William Sessions, MD's prescribing is 50% brand-name and 50% generic drugs by claim count, with $26K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does William Sessions, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Sessions, MD's most frequently prescribed drugs include Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Sessions, MD accept Medicare? ▼
William Sessions, MD appears in CMS Medicare data with 54 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Sessions, MD's credentials? ▼
William Sessions, MD's NPI is 1073004883 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 (2023). 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 April 2026 (NPPES) / 2023 (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 May 2026.