2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1639289978 M.D.
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JOHN HALPHEN, M.D.

Geriatric Medicine (Family Medicine) Physician in BELLAIRE, Texas. 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
375
Medicare Part D claims · 46 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
MIPS score
82.3883/100
▼ 1 pts below national avg 83.1 · [object Object]
What the federal data reveals: JOHN HALPHEN, M.D. is a Geriatric Medicine (Family Medicine) Physician ([object Object]) practicing in BELLAIRE, Texas with a Medicare Part D prescribing footprint of 375 claims across 46 beneficiaries . Their CMS MIPS Final Score of 82.3883/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: JOHN HALPHEN, M.D. reported a CMS MIPS final score of 82.3883 out of 100, below the 83.1 national average, and filed 375 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOHN HALPHEN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JOHN HALPHEN, M.D. at a glance

Near national average

NPI registry status

Active

Issued 08/30/2006

NPI 1639289978

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

375 92% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

MIPS final score

82.3883/100 0.7116999999999933% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Texas

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Texas providers

Texas providers

Geriatric Medicine (Family Medicine) Physician share within Texas

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within Texas

Medicare quality performance — MIPS

JOHN HALPHEN, M.D.'s 2023 MIPS final score plotted against the Geriatric Medicine (Family Medicine) Physician national average

Near national average
MIPS Final Score
82.3883/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Geriatric Medicine (Family Medicine) Physician) — 82.3883/100 vs national avg 83.1

0%100%National avg83%82.4%
MIPS final score (Geriatric Medicine (Family Medicine) Physician) — 82.3883/100 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).

JOHN HALPHEN, M.D. is a Geriatric Medicine (Family Medicine) Physician provider practicing in BELLAIRE, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1639289978. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOHN HALPHEN, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding M.D. credentials at 6500 WEST LOOP S STE 200, BELLAIRE, TX, 77401, with a listed phone of (713) 468-5150. NPI 1639289978 was issued on 08/30/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HALPHEN 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 375 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $14K in drug spend. 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 82.3883/100 for the 2023 performance year (Quality 79.2344, Cost 58.5062), compared with the national average of 83.1.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

6500 WEST LOOP S STE 200
BELLAIRE, TX 77401

Provider Details

NPI 1639289978
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 08/30/2006

CMS Quality Score (MIPS)

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

82.3883
Final Score
Avg: 83.1
79.2344
Quality
58.5062
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JOHN HALPHEN, 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.

UT PHYSICIANS
HOUSTON, 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 JOHN HALPHEN, M.D.. To verify JOHN HALPHEN, M.D.'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.

375
Total Claims
$14K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
803
Total Day Supply
23,850
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
80.5 years
Avg HCC Risk Score
1.36
Gender Split
48% female / 52% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
28
Quetiapine Fumarate
22
Levothyroxine Sodium
21
Sertraline Hcl
20
Metoprolol Succinate
19
Atorvastatin Calcium
18
Simvastatin
18
Losartan Potassium
17
Amlodipine Besylate
15
Ezetimibe
15

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

Geriatric Medicine (Family Medicine) Physician Overview

How JOHN HALPHEN, M.D. fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

JOHN HALPHEN, M.D.'s 375 claims are below the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in Texas

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

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN HALPHEN, M.D.'s specialty?
JOHN HALPHEN, M.D. specializes in Geriatric Medicine (Family Medicine) Physician and practices in BELLAIRE, Texas. Credentials: M.D..
How much does JOHN HALPHEN, M.D. prescribe under Medicare Part D?
In 2023, JOHN HALPHEN, M.D. wrote 375 Medicare Part D claims totaling $14K in drug costs for 46 beneficiaries.
What is JOHN HALPHEN, M.D.'s Medicare quality score?
JOHN HALPHEN, M.D. has a CMS MIPS Final Score of 82.3883/100 (Quality: 79.2344, Cost: 58.5062). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHN HALPHEN, M.D. located?
JOHN HALPHEN, M.D. is located at 6500 WEST LOOP S STE 200, BELLAIRE, TX, 77401. Phone: (713) 468-5150.
What is JOHN HALPHEN, M.D.'s NPI number?
JOHN HALPHEN, M.D.'s National Provider Identifier (NPI) is 1639289978, issued on 08/30/2006.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does JOHN HALPHEN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOHN HALPHEN, M.D.'s most frequently prescribed drugs include Tamsulosin Hcl, Quetiapine Fumarate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN HALPHEN, M.D. accept Medicare?
JOHN HALPHEN, M.D. appears in CMS Medicare data with 375 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN HALPHEN, M.D.'s credentials?
JOHN HALPHEN, M.D.'s NPI is 1639289978 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.
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