2026 NPPES data Hospice and Palliative Medicine (Internal Medicine) Physician NPI 1649465584 MD
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Steven Walker, MD

Hospice and Palliative Medicine (Internal Medicine) Physician in San Antonio, Texas.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,524 in Hospice and Palliative 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
118
Medicare Part D claims · 65 beneficiaries · Hospice and Palliative Medicine (Internal Medicine) Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Steven Walker, MD filed 118 Medicare Part D claims in 2023 as a Hospice and Palliative Medicine (Internal Medicine) Physician in San Antonio, Texas.

118
Part D claims, 2023
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.

Steven Walker, MD's Medicare Part D volume vs every U.S. prescriber

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

118 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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 certification likely (heuristic, not verified)

Steven Walker, MD 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 Steven Walker, MD?

Quality data not reported

NPI registry status

Active

Issued 09/13/2007

NPI 1649465584

Primary specialty

Hospice and Palliative Medicine (Internal Medicine) Physician

Niche

1,524 US NPIs in this specialty

Medicare Part D claims

118 91% vs specialty avg

2023 prescription claims

Specialty avg: 1,275

Specialty distribution in Texas

How Hospice and Palliative Medicine (Internal Medicine) Physician compares to other specialties among Texas providers

Texas providers
Behavior Technician - 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program - 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Professional Counselor - 4.4%Professional Counselor4.4%Pharmacist - 4.4%Pharmacist4.4%Speech-Language Pathologist - 3.9%Speech-Language Pathologist3.9%Hospice and Palliative Medicine (Internal Medicine) Physician - 0%Hospice and Palliative Medicine (Internal Medicine) Physician0%
Largest specialties in Texas (% 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 Hospice and Palliative 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).

Steven Walker, MD appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Internal Medicine) Physician provider holding MD credentials at 300 E SONTERRA BLVD, San Antonio, TX, 78258, with a listed phone of (855) 425-1055. NPI 1649465584 was issued on 09/13/2007.

Medicare Part D records for calendar year 2023 show 118 prescription claims written by this provider, covering 65 Medicare beneficiaries and totaling roughly $8K in drug spend.

Hospice and Palliative Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 1,524 enrolled providers across 51 states and an average of 1,275 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

300 E SONTERRA BLVD
San Antonio, TX 78258

Provider Details

NPI 1649465584
Specialty Hospice and Palliative Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 09/13/2007

Hospital and facility affiliations

Facilities where Steven 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.

Seasons Medical Group OF Texas PLLC
Dallas, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - Texas TMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Steven Walker, MD. To verify Steven Walker, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

118
Total Claims
$8K
Total Drug Cost
65
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
150
Total Day Supply
3,357
Generic Drug Cost
$2K
Antibiotic Claims
19

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
4.51
Gender Split
72% female / 28% male
Age Distribution
<65: 15, 65-74: 20, 75-84: 14, 85+: 16

Hospice and Palliative Medicine (Internal Medicine) Physician Overview

How Steven Walker, MD fits within the Hospice and Palliative Medicine (Internal Medicine) Physician landscape nationally.

1,524
Hospice and Palliative Medicine (Internal Medicine) Physician Providers in US
51
States with Hospice and Palliative Medicine (Internal Medicine) Physician
1,275
Avg Claims per Provider

Steven Walker, MD's 118 claims are below the specialty average of 1,275.

Nearby Hospice and Palliative Medicine (Internal Medicine) Physician Providers in Texas

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

Compare Hospice and Palliative 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 Texas medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Hospice and Palliative 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 Steven Walker, MD's specialty?
Steven Walker, MD specializes in Hospice and Palliative Medicine (Internal Medicine) Physician and practices in San Antonio, Texas. Credentials: MD.
How much does Steven Walker, MD prescribe under Medicare Part D?
In 2023, Steven Walker, MD wrote 118 Medicare Part D claims totaling $8K in drug costs for 65 beneficiaries.
Where is Steven Walker, MD located?
Steven Walker, MD is located at 300 E SONTERRA BLVD, San Antonio, TX, 78258. Phone: (855) 425-1055.
What is Steven Walker, MD's NPI number?
Steven Walker, MD's National Provider Identifier (NPI) is 1649465584, issued on 09/13/2007.
How many Hospice and Palliative Medicine (Internal Medicine) Physician providers are there in the US?
There are 1,524 Hospice and Palliative Medicine (Internal Medicine) Physician providers across 51 states in the US. The average Hospice and Palliative Medicine (Internal Medicine) Physician provider writes 1,275 Medicare Part D claims per year.
Does Steven Walker, MD accept Medicare?
Steven Walker, MD appears in CMS Medicare data with 118 Part D claims and 65 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Steven Walker, MD's credentials?
Steven Walker, MD's NPI is 1649465584 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

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.