NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1093895393 MD
Verify on CMS → James Baker, MD
Colon & Rectal Surgery Physician in Knoxville, 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 1,611 in Colon & Rectal Surgery 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
27
Medicare Part D claims · Colon & Rectal Surgery Physician avg: 196
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
James Baker, MD filed 27 Medicare Part D claims in 2023 as a Colon & Rectal Surgery Physician in Knoxville, Tennessee.
- 27
- Part D claims, 2023
- ≥0th
- 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 James Baker, 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 1093895393), first enumerated 10/17/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 27 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1093895393 · Colon & Rectal Surgery Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1093895393
- ENUM-LEGACY 2006
- TAX-NARROW 1,611
- RX-TRACE 27
- BOOK-THIN 25 in Tennessee
- PHOTO-ENUM William Nowlin · 2006
James Baker, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
27 ≥ 0th percentile 0% of 1,370,886 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 · 2023
◑
Board-eligible specialty (heuristic, not verified)
James Baker, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about James Baker, MD?
Quality data not reportedPrimary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
27 86% vs specialty avg
Specialty distribution in Tennessee
How Colon & Rectal Surgery Physician compares to other specialties among Tennessee 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 Colon & Rectal Surgery Physician. 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 | 1093895393 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/17/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
27
Total Claims
$620
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 29
- Total Day Supply
- 852
- Brand Drug Cost
- $0
- Generic Drug Cost
- $620
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 1.58
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How James Baker, MD fits within the Colon & Rectal Surgery Physician landscape nationally.
1,611
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
James Baker, MD's 27 claims are below the specialty average of 196.
Nationwide Colon & Rectal Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Baker, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Colon & Rectal Surgery Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Baker.
One of 25 Colon & Rectal Surgery Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Aaron Arroyave
MD
Kingsport, TN
Dr. Jason Aston
M.D.
Nashville, TN
Dr. David Beck
MD
Nashville, TN
Dr. Susan Briley
MD
Nashville, TN
Dr. Abner Glover
M.D.
Knoxville, TN
Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is James Baker, MD's specialty? ▼
James Baker, MD specializes in Colon & Rectal Surgery Physician and practices in Knoxville, Tennessee. Credentials: MD.
How much does James Baker, MD prescribe under Medicare Part D? ▼
In 2023, James Baker, MD wrote 27 Medicare Part D claims totaling $620 in drug costs for N/A beneficiaries.
Where is James Baker, MD located? ▼
James Baker, MD is located at 10810 PARKSIDE DR, Knoxville, TN, 37934. Phone: (865) 392-9220.
What is James Baker, MD's NPI number? ▼
James Baker, MD's National Provider Identifier (NPI) is 1093895393, issued on 10/17/2006.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,611 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does James Baker, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, James Baker, MD's most frequently prescribed drugs include Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Baker, MD accept Medicare? ▼
James Baker, MD appears in CMS Medicare data with 27 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Baker, MD's credentials? ▼
James Baker, MD's NPI is 1093895393 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.
- 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.