2026 NPPES data Internal Medicine Physician NPI 1083077358 M.D.
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Clifton Davis, M.D.

Internal Medicine Physician in Council Bluffs, Iowa. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in 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
685
Medicare Part D claims · 118 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
28%
generic claims · 62% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$23.31
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Clifton Davis, M.D. filed 685 Medicare Part D claims in 2023 as a Internal Medicine Physician in Council Bluffs, Iowa, prescribing 28% generic.

685
Part D claims, 2023
28%
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.

Clifton Davis, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

685 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Clifton Davis, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Clifton Davis, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/03/2016

NPI 1083077358

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

685 75% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Iowa

How Internal Medicine Physician compares to other specialties among Iowa providers

Iowa providers

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

Pharmacist - 6.6%Pharmacist6.6%Physical Therapist - 5.5%Physical Therapist5.5%Mental Health Counselor - 5%Mental Health Counselor5%Family Medicine Physician - 4.8%Family Medicine Physician4.8%Chiropractor - 4.2%Chiropractor4.2%Clinical Social Worker - 4.1%Clinical Social Worker4.1%Internal Medicine Physician - 2.8%Internal Medicine Physician2.8%
Largest specialties in Iowa (% of in-state 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 Internal Medicine Physician. Verify directly:

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).

Clifton Davis, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 933 E PIERCE ST, Council Bluffs, IA, 51503, with a listed phone of (712) 396-4360. NPI 1083077358 was issued on 04/03/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Davis 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 685 prescription claims written by this provider, covering 118 Medicare beneficiaries and totaling roughly $421K in drug spend, split 62% brand-name and 28% 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

933 E PIERCE ST
Council Bluffs, IA 51503

Provider Details

NPI 1083077358
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 04/03/2016

Hospital and facility affiliations

Facilities where Clifton Davis, 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.

Unmc Physicians
Omaha, NE

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 Clifton Davis, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$23

Largest payer

Ascensia Diabetes Care Us Inc.

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

Clifton Davis, M.D. - brand share 62.0%
Internal Medicine Physician average

62% brand-name claims vs 28% generic, on 685 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.

685
Total Claims
$421K
Total Drug Cost
118
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,420
Total Day Supply
41,350
Brand vs Generic
62% brand / 28% generic
Brand Drug Cost
$391K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
68.1 years
Avg HCC Risk Score
2.18
Gender Split
51% female / 49% male
Age Distribution
<65: 32, 65-74: 57, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What Clifton Davis, 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
97
Humalog Kwikpen U-100
Insulin Lispro
40
Jardiance
Empagliflozin
32
Novolog Flexpen
Insulin Aspart
28
Ozempic
Semaglutide
28
Methimazole
27
Metformin Hcl
25
Metformin Hcl Er
Metformin Hcl
22
Trulicity
Dulaglutide
22
Tresiba Flextouch U-100
Insulin Degludec
15

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

Internal Medicine Physician Overview

How Clifton Davis, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Clifton Davis, M.D.'s 685 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Iowa

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

Compare Internal Medicine 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 Iowa medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine 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 Clifton Davis, M.D.'s specialty?
Clifton Davis, M.D. specializes in Internal Medicine Physician and practices in Council Bluffs, Iowa. Credentials: M.D..
How much does Clifton Davis, M.D. prescribe under Medicare Part D?
In 2023, Clifton Davis, M.D. wrote 685 Medicare Part D claims totaling $421K in drug costs for 118 beneficiaries.
Where is Clifton Davis, M.D. located?
Clifton Davis, M.D. is located at 933 E PIERCE ST, Council Bluffs, IA, 51503. Phone: (712) 396-4360.
What is Clifton Davis, M.D.'s NPI number?
Clifton Davis, M.D.'s National Provider Identifier (NPI) is 1083077358, issued on 04/03/2016.
Does Clifton Davis, M.D. prescribe more brand-name or generic drugs?
Clifton Davis, M.D.'s prescribing is 62% brand-name and 28% generic drugs by claim count, with $391K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Clifton Davis, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Clifton Davis, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Humalog Kwikpen U-100, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Clifton Davis, M.D. accept Medicare?
Clifton Davis, M.D. appears in CMS Medicare data with 685 Part D claims and 118 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clifton Davis, M.D.'s credentials?
Clifton Davis, M.D.'s NPI is 1083077358 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

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

Compiled from official public sources by the PlainDoctor editorial team.