2026 NPPES data General Practice Physician NPI 1821595083 MD, PHD, MPH, MS
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JACOB VANHOUTEN, MD, PHD, MPH, MS

General Practice Physician in TUCSON, Arizona. 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
2K
Medicare Part D claims · 298 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$17.04
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JACOB VANHOUTEN, MD, PHD, MPH, MS is a General Practice Physician ([object Object]) practicing in TUCSON, Arizona with a Medicare Part D prescribing footprint of 2K claims across 298 beneficiaries — 15% brand-name prescribing . Industry payments of $17.04 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What the federal data shows

JACOB VANHOUTEN, MD, PHD, MPH, MS filed 2,095 Medicare Part D claims in 2023 as a General Practice Physician in TUCSON, Arizona, prescribing 85% generic.

2K
Part D claims, 2023
85%
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.

Board certification likely (heuristic — not verified)

JACOB VANHOUTEN, MD, PHD, MPH, MS 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).

JACOB VANHOUTEN, MD, PHD, MPH, MS at a glance

Quality data not reported

NPI registry status

Active

Issued 04/12/2018

NPI 1821595083

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

2,095 27% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Arizona

How General Practice Physician compares to other specialties among Arizona providers

Arizona providers

General Practice Physician share within Arizona

1. General Practice Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Physician share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
General Practice Physician ABMS/AOA estimate

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

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).

JACOB VANHOUTEN, MD, PHD, MPH, MS is a General Practice Physician provider practicing in TUCSON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD, PHD, MPH, MS. NPI: 1821595083. 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.

JACOB VANHOUTEN, MD, PHD, MPH, MS appears in the CMS NPPES registry as a General Practice Physician provider holding MD, PHD, MPH, MS credentials at 2940 S 6TH AVE, TUCSON, AZ, 85713, with a listed phone of (512) 613-1001. NPI 1821595083 was issued on 04/12/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VANHOUTEN 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 2,095 prescription claims written by this provider, covering 298 Medicare beneficiaries and totaling roughly $246K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 4.0%. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

2940 S 6TH AVE
TUCSON, AZ 85713

Provider Details

NPI 1821595083
Specialty General Practice Physician
Credentials MD, PHD, MPH, MS
Gender Male
NPI Issued 04/12/2018

Hospital and facility affiliations

Facilities where JACOB VANHOUTEN, MD, PHD, MPH, MS 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.

MARY IMOGENE BASSETT HOSPITAL
ONEONTA, NY

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 JACOB VANHOUTEN, MD, PHD, MPH, MS. Source: openpaymentsdata.cms.gov.

Total received

$17

Largest payer

Exact Sciences Corporation

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

JACOB VANHOUTEN, MD, PHD, MPH, MS — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 2,095 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.

2,095
Total Claims
$246K
Total Drug Cost
298
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,843
Total Day Supply
138,847
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$209K
Generic Drug Cost
$34K
Opioid Claims
84 (4.0% rate)
Antibiotic Claims
73

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
1.35
Gender Split
55% female / 45% male
Age Distribution
<65: 18, 65-74: 175, 75-84: 87, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
120
Lisinopril
104
Metformin Hcl
96
Amlodipine Besylate
82
Losartan Potassium
74
Tamsulosin Hcl
62
Levothyroxine Sodium
58
Tramadol Hcl
54
Omeprazole
39
Diclofenac Sodium
37

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

General Practice Physician Overview

How JACOB VANHOUTEN, MD, PHD, MPH, MS fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

JACOB VANHOUTEN, MD, PHD, MPH, MS's 2,095 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Arizona

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JACOB VANHOUTEN, MD, PHD, MPH, MS's specialty?
JACOB VANHOUTEN, MD, PHD, MPH, MS specializes in General Practice Physician and practices in TUCSON, Arizona. Credentials: MD, PHD, MPH, MS.
How much does JACOB VANHOUTEN, MD, PHD, MPH, MS prescribe under Medicare Part D?
In 2023, JACOB VANHOUTEN, MD, PHD, MPH, MS wrote 2,095 Medicare Part D claims totaling $246K in drug costs for 298 beneficiaries.
Where is JACOB VANHOUTEN, MD, PHD, MPH, MS located?
JACOB VANHOUTEN, MD, PHD, MPH, MS is located at 2940 S 6TH AVE, TUCSON, AZ, 85713. Phone: (512) 613-1001.
What is JACOB VANHOUTEN, MD, PHD, MPH, MS's NPI number?
JACOB VANHOUTEN, MD, PHD, MPH, MS's National Provider Identifier (NPI) is 1821595083, issued on 04/12/2018.
Does JACOB VANHOUTEN, MD, PHD, MPH, MS prescribe more brand-name or generic drugs?
JACOB VANHOUTEN, MD, PHD, MPH, MS's prescribing is 15% brand-name and 85% generic drugs by claim count, with $209K in brand drug costs.
Does JACOB VANHOUTEN, MD, PHD, MPH, MS prescribe opioids?
Yes, JACOB VANHOUTEN, MD, PHD, MPH, MS had 84 opioid claims in 2023 with an opioid prescribing rate of 4.0%.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does JACOB VANHOUTEN, MD, PHD, MPH, MS prescribe most often?
Based on 2023 Medicare Part D data, JACOB VANHOUTEN, MD, PHD, MPH, MS's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JACOB VANHOUTEN, MD, PHD, MPH, MS accept Medicare?
JACOB VANHOUTEN, MD, PHD, MPH, MS appears in CMS Medicare data with 2,095 Part D claims and 298 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JACOB VANHOUTEN, MD, PHD, MPH, MS's credentials?
JACOB VANHOUTEN, MD, PHD, MPH, MS's NPI is 1821595083 with credentials MD, PHD, MPH, MS. 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.
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