2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1710052394 MD
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CALVIN VANREKEN, MD

Geriatric Medicine (Internal Medicine) Physician in RENO, Nevada. 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 · 81 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$910.82
29 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CALVIN VANREKEN, MD is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in RENO, Nevada with a Medicare Part D prescribing footprint of 2K claims across 81 beneficiaries — 15% brand-name prescribing . Industry payments of $910.82 across 29 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CALVIN VANREKEN, MD filed 1,963 Medicare Part D claims in 2023 across RENO, Nevada. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

CALVIN VANREKEN, MD 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).

CALVIN VANREKEN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/21/2006

NPI 1710052394

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

1,963 56% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Nevada

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Nevada providers

Nevada providers

Geriatric Medicine (Internal Medicine) Physician share within Nevada

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

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Internal Medicine) 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).

CALVIN VANREKEN, MD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in RENO, Nevada, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1710052394. 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.

CALVIN VANREKEN, MD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD credentials at 55 FOOTHILL RD STE 1, RENO, NV, 89511, with a listed phone of (775) 358-1717. NPI 1710052394 was issued on 11/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VANREKEN 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 1,963 prescription claims written by this provider, covering 81 Medicare beneficiaries and totaling roughly $411K in drug spend, split 15% brand-name and 85% 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

55 FOOTHILL RD STE 1
RENO, NV 89511

Provider Details

NPI 1710052394
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 11/21/2006

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 CALVIN VANREKEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$911

Largest payer

ABBVIE 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

CALVIN VANREKEN, MD — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 1,963 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.

1,963
Total Claims
$411K
Total Drug Cost
81
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,225
Total Day Supply
153,752
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$344K
Generic Drug Cost
$66K
Opioid Claims
40 (2.0% rate)
Antibiotic Claims
67

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
0.93
Gender Split
47% female / 53% 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
Atorvastatin Calcium
104
Telmisartan
97
Metformin Hcl
86
Levothyroxine Sodium
80
Rosuvastatin Calcium
61
Metformin Hcl Er
Metformin Hcl
45
Famotidine
41
Omeprazole
41
Ozempic
Semaglutide
39
Metoprolol Succinate
34

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

Geriatric Medicine (Internal Medicine) Physician Overview

How CALVIN VANREKEN, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

CALVIN VANREKEN, MD's 1,963 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Nevada

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

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

Frequently Asked Questions

What is CALVIN VANREKEN, MD's specialty?
CALVIN VANREKEN, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in RENO, Nevada. Credentials: MD.
How much does CALVIN VANREKEN, MD prescribe under Medicare Part D?
In 2023, CALVIN VANREKEN, MD wrote 1,963 Medicare Part D claims totaling $411K in drug costs for 81 beneficiaries.
Where is CALVIN VANREKEN, MD located?
CALVIN VANREKEN, MD is located at 55 FOOTHILL RD STE 1, RENO, NV, 89511. Phone: (775) 358-1717.
What is CALVIN VANREKEN, MD's NPI number?
CALVIN VANREKEN, MD's National Provider Identifier (NPI) is 1710052394, issued on 11/21/2006.
Does CALVIN VANREKEN, MD prescribe more brand-name or generic drugs?
CALVIN VANREKEN, MD's prescribing is 15% brand-name and 85% generic drugs by claim count, with $344K in brand drug costs.
Does CALVIN VANREKEN, MD prescribe opioids?
Yes, CALVIN VANREKEN, MD had 40 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does CALVIN VANREKEN, MD prescribe most often?
Based on 2023 Medicare Part D data, CALVIN VANREKEN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Telmisartan, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CALVIN VANREKEN, MD accept Medicare?
CALVIN VANREKEN, MD appears in CMS Medicare data with 1,963 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CALVIN VANREKEN, MD's credentials?
CALVIN VANREKEN, MD's NPI is 1710052394 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.
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