2026 NPPES data General Practice Physician NPI 1336130079 M.D.
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James Bass, M.D.

General Practice Physician in Rolla, Missouri.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,725 in General Practice 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
4K
Medicare Part D claims · 233 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.5/100
▼ 6 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

James Bass, M.D. reported a CMS MIPS final score of 77.5/100 - below the 83.1 national average - and filed 4,301 Medicare Part D claims in 2023.

77.5/100
MIPS score · -6 vs avg
4K
Part D claims, 2023
90%
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.

James Bass, M.D.'s MIPS score vs every scored U.S. clinician

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

78 24th percentile higher than 24% 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 James Bass, M.D. sits

This provider among general practice physician peers

Across the 783 general practice physician providers who report both Medicare Part D prescribing and a MIPS quality score, James Bass, M.D. writes more Part D claims than 76% of them and scores higher on MIPS quality than 36% - placing this provider in the high-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 quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28James Bass, M.D.-Part D claim volume, percentile in specialty: 76 · MIPS quality, percentile: 36
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one general practice physician peer from a representative sample of 60; the gold marker is James Bass, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

James Bass, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 James Bass, M.D.?

Below national average

NPI registry status

Active

Issued 11/02/2005

NPI 1336130079

Primary specialty

General Practice Physician

Mid-sized

16,725 US NPIs in this specialty

Medicare Part D claims

4,301 50% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

MIPS final score

77.5/100 5.6 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Missouri

How General Practice Physician compares to other specialties among Missouri providers

Missouri providers
Pharmacist - 4.8%Pharmacist4.8%Professional Counselor - 4.8%Professional Counselor4.8%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Clinical Social Worker - 4.5%Clinical Social Worker4.5%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4%Physical Therapist4%General Practice Physician - 0.2%General Practice Physician0.2%
Largest specialties in Missouri (% of in-state providers)

Medicare quality performance, MIPS

James Bass, M.D.'s 2023 MIPS final score plotted against the General Practice Physician national average

Below national average
MIPS Final Score
77.5/100
vs 83.1 national avg · 2023 performance year

MIPS final score (General Practice Physician) - 77.5/100 vs national avg 83.1

0%100%National avg83%77.5%
MIPS final score (General Practice Physician) - 77.5/100 vs national avg 83.1
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).

James Bass, M.D. appears in the CMS NPPES registry as a General Practice Physician provider holding M.D. credentials at 1050 W 10TH ST, Rolla, MO, 65401, with a listed phone of (573) 364-9000. NPI 1336130079 was issued on 11/02/2005.

Medicare Part D records for calendar year 2023 show 4,301 prescription claims written by this provider, covering 233 Medicare beneficiaries and totaling roughly $289K in drug spend, split 9% brand-name and 90% generic by claim count, with an opioid prescribing rate of 3.2%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.5/100 for the 2023 performance year (Quality 64.9, Cost 60.2), compared with the national average of 83.1.

General Practice Physician is a mid-sized specialty nationwide, with 16,725 enrolled providers across 56 states and an average of 2,872 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

1050 W 10TH ST
Rolla, MO 65401

Provider Details

NPI 1336130079
Specialty General Practice Physician
Credentials M.D.
Gender Male
NPI Issued 11/02/2005

CMS Quality Score (MIPS)

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

77.5232
Final Score
Avg: 83.1
64.8858
Quality
60.1917
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where James Bass, M.D. 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.

Phelps County Regional Medical Center
★★☆☆☆ 2/5
Rolla, MO
Acute Care Hospitals
CMS CCN: 260017
Pcrmc Medical Group Inc
Rolla, MO

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

James Bass, M.D. - brand share 9.0%
General Practice Physician average

9% brand-name claims vs 90% generic, on 4,301 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.

4,301
Total Claims
$289K
Total Drug Cost
233
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,916
Total Day Supply
228,910
Brand vs Generic
9% brand / 90% generic
Brand Drug Cost
$212K
Generic Drug Cost
$76K
Opioid Claims
138 (3.2% rate)
Antibiotic Claims
79

Patient Demographics

Average Patient Age
76.8 years
Avg HCC Risk Score
1.24
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

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

What James Bass, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Levothyroxine Sodium
254
Amlodipine Besylate
229
Lisinopril
152
Rosuvastatin Calcium
134
Atorvastatin Calcium
116
Escitalopram Oxalate
112
Simvastatin
103
Gabapentin
101
Losartan Potassium
95
Omeprazole
94

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

General Practice Physician Overview

How James Bass, M.D. fits within the General Practice Physician landscape nationally.

16,725
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

James Bass, M.D.'s 4,301 claims are above the specialty average of 2,872.

Nearby General Practice Physician Providers in Missouri

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

Compare General Practice Physician 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 Missouri medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby General Practice Physician 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 James Bass, M.D.'s specialty?
James Bass, M.D. specializes in General Practice Physician and practices in Rolla, Missouri. Credentials: M.D..
How much does James Bass, M.D. prescribe under Medicare Part D?
In 2023, James Bass, M.D. wrote 4,301 Medicare Part D claims totaling $289K in drug costs for 233 beneficiaries.
What is James Bass, M.D.'s Medicare quality score?
James Bass, M.D. has a CMS MIPS Final Score of 77.5/100 (Quality: 64.9, Cost: 60.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is James Bass, M.D. located?
James Bass, M.D. is located at 1050 W 10TH ST, Rolla, MO, 65401. Phone: (573) 364-9000.
What is James Bass, M.D.'s NPI number?
James Bass, M.D.'s National Provider Identifier (NPI) is 1336130079, issued on 11/02/2005.
Does James Bass, M.D. prescribe more brand-name or generic drugs?
James Bass, M.D.'s prescribing is 9% brand-name and 90% generic drugs by claim count, with $212K in brand drug costs.
Does James Bass, M.D. prescribe opioids?
Yes, James Bass, M.D. had 138 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
How many General Practice Physician providers are there in the US?
There are 16,725 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does James Bass, M.D. prescribe most often?
Based on 2023 Medicare Part D data, James Bass, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Bass, M.D. accept Medicare?
James Bass, M.D. appears in CMS Medicare data with 4,301 Part D claims and 233 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Bass, M.D.'s credentials?
James Bass, M.D.'s NPI is 1336130079 with credentials M.D.. 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

Compiled from official public sources by the PlainDoctor editorial team.

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.