2026 NPPES data Specialist NPI 1891788840 MD
Verify on CMS →

Chet Jameson, MD

Specialist in Columbia, 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 69,658 in Specialist, 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
112
Medicare Part D claims · 36 beneficiaries · Specialist avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
76.8/100
▼ 6 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Chet Jameson, MD reported a CMS MIPS final score of 76.8/100 - below the 83.1 national average - and filed 112 Medicare Part D claims in 2023.

76.8/100
MIPS score · -6 vs avg
112
Part D claims, 2023
87%
generic prescribing

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.

Chet Jameson, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

77 21st percentile higher than 21% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Chet Jameson, MD sits

This provider among specialist peers

Across the 4,869 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Chet Jameson, MD writes more Part D claims than 14% of them and scores higher on MIPS quality than 39% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 62Chet Jameson, MD-Part D claim volume, percentile in specialty: 14 · MIPS quality, percentile: 39
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one specialist peer from a representative sample of 60; the gold marker is Chet Jameson, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Chet Jameson, MD?

Below national average

NPI registry status

Active

Issued 08/24/2005

NPI 1891788840

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

112 92% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

76.8/100 6.3 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Tennessee

How Specialist compares to other specialties among Tennessee providers

Tennessee providers

Largest specialties in Tennessee (% of in-state providers)

Family Nurse Practitioner - 6.4%Family Nurse Practitioner6.4%Pharmacist - 5.9%Pharmacist5.9%Student in an Organized Health Care Education/Training Program - 4.6%Student in an Organized Health Care Education/Training Program4.6%Physical Therapist - 4.2%Physical Therapist4.2%Behavior Technician - 4.2%Behavior Technician4.2%Registered Nurse - 3.9%Registered Nurse3.9%Specialist - 0.8%Specialist0.8%
Largest specialties in Tennessee (% of in-state providers)

Medicare quality performance, MIPS

Chet Jameson, MD's 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
76.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) - 76.8/100 vs national avg 83.1

0%100%National avg83%76.8%
MIPS final score (Specialist) - 76.8/100 vs national avg 83.1

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).

Chet Jameson, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 1222 TROTWOOD AVE, Columbia, TN, 38401, with a listed phone of (931) 381-3872. NPI 1891788840 was issued on 08/24/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Jameson most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 112 prescription claims written by this provider, covering 36 Medicare beneficiaries and totaling roughly $250K in drug spend, split 13% brand-name and 87% generic by claim count. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.8/100 for the 2023 performance year (Quality 68.2, Cost 54.4), compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1222 TROTWOOD AVE
Columbia, TN 38401

Provider Details

NPI 1891788840
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 08/24/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

76.7859
Final Score
Avg: 83.1
68.2436
Quality
54.3762
Cost
100
Promoting Interoperability

Reporting: Group practice

Brand vs generic prescribing mix · Typical

Chet Jameson, MD - brand share 13.0%
Specialist average

13% brand-name claims vs 87% generic, on 112 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.

112
Total Claims
$250K
Total Drug Cost
36
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
183
Total Day Supply
5,129
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$206K
Generic Drug Cost
$45K

Patient Demographics

Average Patient Age
74.8 years
Avg HCC Risk Score
2.38

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Imatinib Mesylate
23
Anastrozole
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Specialist Overview

How Chet Jameson, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

Chet Jameson, MD's 112 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Tennessee

Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Jameson.

Compare Specialist nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Tennessee medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Specialist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Chet Jameson, MD's specialty?
Chet Jameson, MD specializes in Specialist and practices in Columbia, Tennessee. Credentials: MD.
How much does Chet Jameson, MD prescribe under Medicare Part D?
In 2023, Chet Jameson, MD wrote 112 Medicare Part D claims totaling $250K in drug costs for 36 beneficiaries.
What is Chet Jameson, MD's Medicare quality score?
Chet Jameson, MD has a CMS MIPS Final Score of 76.8/100 (Quality: 68.2, Cost: 54.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Chet Jameson, MD located?
Chet Jameson, MD is located at 1222 TROTWOOD AVE, Columbia, TN, 38401. Phone: (931) 381-3872.
What is Chet Jameson, MD's NPI number?
Chet Jameson, MD's National Provider Identifier (NPI) is 1891788840, issued on 08/24/2005.
Does Chet Jameson, MD prescribe more brand-name or generic drugs?
Chet Jameson, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $206K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Chet Jameson, MD prescribe most often?
Based on 2023 Medicare Part D data, Chet Jameson, MD's most frequently prescribed drugs include Imatinib Mesylate, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chet Jameson, MD accept Medicare?
Chet Jameson, MD appears in CMS Medicare data with 112 Part D claims and 36 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chet Jameson, MD's credentials?
Chet Jameson, MD's NPI is 1891788840 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

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

Compiled from official public sources by the PlainDoctor editorial team.