2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1659308112 M.D.
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Ryland Byrd, M.D.

Critical Care Medicine (Internal Medicine) Physician in Mountain Home, 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
373
Medicare Part D claims · 171 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
35%
generic claims · 65% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ryland Byrd, M.D. filed 373 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in Mountain Home, Tennessee, prescribing 35% generic.

373
Part D claims, 2023
35%
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.

Ryland Byrd, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

373 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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-eligible specialty (heuristic, not verified)

Ryland Byrd, M.D. 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 Ryland Byrd, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/28/2006

NPI 1659308112

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,646 US NPIs in this specialty

Medicare Part D claims

373 65% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in Tennessee

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Tennessee providers

Tennessee 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%Critical Care Medicine (Internal Medicine) Physician - 0.1%Critical Care Medicine (Internal Medicine) Physician0.1%
Largest specialties in Tennessee (% 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 Critical Care Medicine (Internal Medicine) 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).

Ryland Byrd, M.D. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D. credentials at JAMES H. QUILLEN VAMC 111-B, Mountain Home, TN, 37684, with a listed phone of (423) 926-1171. NPI 1659308112 was issued on 06/28/2006.

Medicare Part D records for calendar year 2023 show 373 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $264K in drug spend, split 65% brand-name and 35% generic by claim count.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,646 enrolled providers across 53 states and an average of 1,069 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

JAMES H. QUILLEN VAMC 111-B
Mountain Home, TN 37684

Provider Details

NPI 1659308112
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 06/28/2006

Brand vs generic prescribing mix · Brand-heavy

Ryland Byrd, M.D. - brand share 65.0%
Critical Care Medicine (Internal Medicine) Physician average

65% brand-name claims vs 35% generic, on 373 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.

373
Total Claims
$264K
Total Drug Cost
171
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
607
Total Day Supply
17,965
Brand vs Generic
65% brand / 35% generic
Brand Drug Cost
$212K
Generic Drug Cost
$53K

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
2.23
Gender Split
60% female / 40% male
Age Distribution
<65: 25, 65-74: 67, 75-84: 66, 85+: 13

Top Prescribed Drugs (Medicare Part D)

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

What Ryland Byrd, 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
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
72
Albuterol Sulfate Hfa
Albuterol Sulfate
43
Montelukast Sodium
35
Stiolto Respimat
Tiotropium Br/Olodaterol Hcl
32
Symbicort
Budesonide/Formoterol Fumarate
27
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
26
Spiriva Respimat
Tiotropium Bromide
13
Breo Ellipta
Fluticasone/Vilanterol
11
Theophylline Er
Theophylline Anhydrous
11

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

Critical Care Medicine (Internal Medicine) Physician Overview

How Ryland Byrd, M.D. 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

Ryland Byrd, M.D.'s 373 claims are below the specialty average of 1,069.

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 Byrd.

Compare Critical Care Medicine (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 Tennessee medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Critical Care Medicine (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 Ryland Byrd, M.D.'s specialty?
Ryland Byrd, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Mountain Home, Tennessee. Credentials: M.D..
How much does Ryland Byrd, M.D. prescribe under Medicare Part D?
In 2023, Ryland Byrd, M.D. wrote 373 Medicare Part D claims totaling $264K in drug costs for 171 beneficiaries.
Where is Ryland Byrd, M.D. located?
Ryland Byrd, M.D. is located at JAMES H. QUILLEN VAMC 111-B, Mountain Home, TN, 37684. Phone: (423) 926-1171.
What is Ryland Byrd, M.D.'s NPI number?
Ryland Byrd, M.D.'s National Provider Identifier (NPI) is 1659308112, issued on 06/28/2006.
Does Ryland Byrd, M.D. prescribe more brand-name or generic drugs?
Ryland Byrd, M.D.'s prescribing is 65% brand-name and 35% generic drugs by claim count, with $212K 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 Ryland Byrd, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Ryland Byrd, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ryland Byrd, M.D. accept Medicare?
Ryland Byrd, M.D. appears in CMS Medicare data with 373 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ryland Byrd, M.D.'s credentials?
Ryland Byrd, M.D.'s NPI is 1659308112 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.
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.