NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1679890057 M.D.
Verify on CMS → Walter Hair, M.D.
Gastroenterology Physician in Boise, Idaho.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,567 in Gastroenterology 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
14
Medicare Part D claims · Gastroenterology Physician avg: 833
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Walter Hair, M.D. filed 14 Medicare Part D claims in 2023 as a Gastroenterology Physician in Boise, Idaho.
- 14
- Part D claims, 2023
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.
Walter Hair, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
14 0th percentile higher than 0% of 1,370,886 prescribers
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)
Walter Hair, 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 Walter Hair, M.D.?
Quality data not reportedPrimary specialty
Gastroenterology Physician
Medicare Part D claims
14 98% vs specialty avg
Specialty distribution in Idaho
How Gastroenterology Physician compares to other specialties among Idaho 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 Gastroenterology 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).
Walter Hair, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at 1402 N PROMONTORY RD, Boise, ID, 83702, with a listed phone of (208) 344-8247. NPI 1679890057 was issued on 04/26/2010.
Medicare Part D records for calendar year 2023 show 14 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $2K in drug spend.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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
Provider Details
| NPI | 1679890057 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/26/2010 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
14
Total Claims
$2K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 44
- Total Day Supply
- 1,340
- Generic Drug Cost
- $91
Patient Demographics
- Average Patient Age
- 76.0 years
- Avg HCC Risk Score
- 0.90
Gastroenterology Physician Overview
How Walter Hair, M.D. fits within the Gastroenterology Physician landscape nationally.
16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Walter Hair, M.D.'s 14 claims are below the specialty average of 833.
Nearby Gastroenterology Physician Providers in Idaho
Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as Hair.
Dr. Paul Baehr
M.D.
Boise, ID
Dr. Clint Behrend
M.D.
Idaho Falls, ID
Dr. Hadi Bhurgri
MD
Ketchum, ID
Dr. Theodore Bohlman
M.D.
Meridian, ID
Dr. Bryan Brimhall
M.D.
Boise, ID
Compare Gastroenterology 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 Idaho medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gastroenterology 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Idaho
Frequently Asked Questions
What is Walter Hair, M.D.'s specialty? ▼
Walter Hair, M.D. specializes in Gastroenterology Physician and practices in Boise, Idaho. Credentials: M.D..
How much does Walter Hair, M.D. prescribe under Medicare Part D? ▼
In 2023, Walter Hair, M.D. wrote 14 Medicare Part D claims totaling $2K in drug costs for N/A beneficiaries.
Where is Walter Hair, M.D. located? ▼
Walter Hair, M.D. is located at 1402 N PROMONTORY RD, Boise, ID, 83702. Phone: (208) 344-8247.
What is Walter Hair, M.D.'s NPI number? ▼
Walter Hair, M.D.'s National Provider Identifier (NPI) is 1679890057, issued on 04/26/2010.
How many Gastroenterology Physician providers are there in the US? ▼
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
Does Walter Hair, M.D. accept Medicare? ▼
Walter Hair, M.D. appears in CMS Medicare data with 14 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Walter Hair, M.D.'s credentials? ▼
Walter Hair, M.D.'s NPI is 1679890057 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.