2026 NPPES data Internal Medicine Physician NPI 1922304195 MD
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MUGABE WALKER, MD

Internal Medicine Physician in ALAMOSA, Colorado. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 255 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.9724/100
▲ 1 pts above national avg 83.1 · [object Object]
Industry payments
$14.88
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MUGABE WALKER, MD reported a CMS MIPS final score of 83.9724/100 — above the 83.1 national average — and filed 2,828 Medicare Part D claims in 2023.

83.9724/100
MIPS score · +1 vs avg
3K
Part D claims, 2023
87%
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.

MUGABE WALKER, MD's MIPS score vs every scored U.S. clinician

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

84 42nd percentile higher than 42% 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%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 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

Board certification likely (heuristic — not verified)

MUGABE WALKER, MD 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 MUGABE WALKER, MD?

Near national average

NPI registry status

Active

Issued 02/04/2011

NPI 1922304195

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,828 4% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

83.9724/100 0.872399999999999% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Colorado

How Internal Medicine Physician compares to other specialties among Colorado providers

Colorado providers

Internal Medicine Physician share within Colorado

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Colorado

Medicare quality performance — MIPS

MUGABE WALKER, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Near national average
MIPS Final Score
83.9724/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 83.9724/100 vs national avg 83.1

0%100%National avg83%84%
MIPS final score (Internal Medicine Physician) — 83.9724/100 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).

MUGABE WALKER, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 2312 CARROLL ST, ALAMOSA, CO, 81101, with a listed phone of (412) 692-0803. NPI 1922304195 was issued on 02/04/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WALKER 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 2,828 prescription claims written by this provider, covering 255 Medicare beneficiaries and totaling roughly $214K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.0%. 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 83.9724/100 for the 2023 performance year (Quality 73.8008, Cost 57.1654), compared with the national average of 83.1.

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

2312 CARROLL ST
ALAMOSA, CO 81101

Provider Details

NPI 1922304195
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 02/04/2011

CMS Quality Score (MIPS)

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

83.9724
Final Score
Avg: 83.1
73.8008
Quality
57.1654
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MUGABE WALKER, MD 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.

CONVIVA MEDICAL CENTER MANAGEMENT OF TEXAS, P.A.
SAN ANTONIO, TX
LUTHERAN HOSPITAL ASSOCIATION OF THE SAN LUIS VALLEY
ALAMOSA, CO

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 MUGABE WALKER, MD. Source: openpaymentsdata.cms.gov.

Total received

$15

Largest payer

Indivior 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 · Typical

MUGABE WALKER, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 2,828 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.

2,828
Total Claims
$214K
Total Drug Cost
255
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,421
Total Day Supply
115,897
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$169K
Generic Drug Cost
$43K
Opioid Claims
56 (2.0% rate)
Antibiotic Claims
38

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.25
Gender Split
52% female / 48% male
Age Distribution
<65: 33, 65-74: 108, 75-84: 74, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

What MUGABE WALKER, MD 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
Atorvastatin Calcium
184
Lisinopril
181
Levothyroxine Sodium
122
Losartan Potassium
98
Gabapentin
93
Escitalopram Oxalate
90
Hydrochlorothiazide
90
Amlodipine Besylate
86
Furosemide
86
Metformin Hcl
81

* 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 MUGABE WALKER, MD 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

MUGABE WALKER, MD's 2,828 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Colorado

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MUGABE WALKER, MD's specialty?
MUGABE WALKER, MD specializes in Internal Medicine Physician and practices in ALAMOSA, Colorado. Credentials: MD.
How much does MUGABE WALKER, MD prescribe under Medicare Part D?
In 2023, MUGABE WALKER, MD wrote 2,828 Medicare Part D claims totaling $214K in drug costs for 255 beneficiaries.
What is MUGABE WALKER, MD's Medicare quality score?
MUGABE WALKER, MD has a CMS MIPS Final Score of 83.9724/100 (Quality: 73.8008, Cost: 57.1654). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MUGABE WALKER, MD located?
MUGABE WALKER, MD is located at 2312 CARROLL ST, ALAMOSA, CO, 81101. Phone: (412) 692-0803.
What is MUGABE WALKER, MD's NPI number?
MUGABE WALKER, MD's National Provider Identifier (NPI) is 1922304195, issued on 02/04/2011.
Does MUGABE WALKER, MD prescribe more brand-name or generic drugs?
MUGABE WALKER, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $169K in brand drug costs.
Does MUGABE WALKER, MD prescribe opioids?
Yes, MUGABE WALKER, MD had 56 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
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 MUGABE WALKER, MD prescribe most often?
Based on 2023 Medicare Part D data, MUGABE WALKER, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MUGABE WALKER, MD accept Medicare?
MUGABE WALKER, MD appears in CMS Medicare data with 2,828 Part D claims and 255 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MUGABE WALKER, MD's credentials?
MUGABE WALKER, MD's NPI is 1922304195 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