2026 NPPES data Family Medicine Physician NPI 1427460195 MD
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Kory Mace, MD

Family Medicine Physician in Holland, Michigan. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,640 in Family 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
3K
Medicare Part D claims · 397 beneficiaries · Family Medicine Physician avg: 3K
Industry payments
$38.54
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kory Mace, MD filed 2,942 Medicare Part D claims in 2023 as a Family Medicine Physician in Holland, Michigan.

3K
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.

Kory Mace, MD's Medicare Part D volume vs every U.S. prescriber

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

2,942 Top 12% higher than 88% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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)

Kory Mace, 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 Kory Mace, MD?

Quality data not reported

NPI registry status

Active

Issued 05/28/2014

NPI 1427460195

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

2,942 14% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Michigan

How Family Medicine Physician compares to other specialties among Michigan providers

Michigan providers

Largest specialties in Michigan (% of in-state providers)

Behavior Technician - 21.4%Behavior Technician21.4%Clinical Social Worker - 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program - 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist - 3.4%Physical Therapist3.4%Social Worker - 3.4%Social Worker3.4%Pharmacist - 3%Pharmacist3%Family Medicine Physician - 2.1%Family Medicine Physician2.1%
Largest specialties in Michigan (% 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 Family Medicine Physician. Verify directly:

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).

Kory Mace, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 588 E LAKEWOOD BLVD FL 1, Holland, MI, 49424, with a listed phone of (616) 494-5800. NPI 1427460195 was issued on 05/28/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Mace 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 2,942 prescription claims written by this provider, covering 397 Medicare beneficiaries and totaling roughly $251K 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

588 E LAKEWOOD BLVD FL 1
Holland, MI 49424

Provider Details

NPI 1427460195
Specialty Family Medicine Physician
Credentials MD
Gender Female
NPI Issued 05/28/2014

Hospital and facility affiliations

Facilities where Kory Mace, 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.

Spectrum Health Primary Care Partners
Grand Rapids, MI

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 Kory Mace, MD. Source: openpaymentsdata.cms.gov.

Total received

$39

Largest payer

PFIZER 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.

License & disciplinary context - Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 - they are NOT specific to Kory Mace, MD. To verify Kory Mace, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan 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.

2,942
Total Claims
$251K
Total Drug Cost
397
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,411
Total Day Supply
217,881
Generic Drug Cost
$66K
Antibiotic Claims
55

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.02
Gender Split
66% female / 34% male
Age Distribution
<65: 50, 65-74: 208, 75-84: 113, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

What Kory Mace, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
299
Levothyroxine Sodium
183
Omeprazole
149
Lisinopril
139
Amlodipine Besylate
105
Losartan Potassium
96
Metformin Hcl Er
Metformin Hcl
87
Sertraline Hcl
67
Hydrochlorothiazide
65
Gabapentin
63

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

Family Medicine Physician Overview

How Kory Mace, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

Kory Mace, MD's 2,942 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Michigan

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

Compare Family 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 Michigan medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family 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 Kory Mace, MD's specialty?
Kory Mace, MD specializes in Family Medicine Physician and practices in Holland, Michigan. Credentials: MD.
How much does Kory Mace, MD prescribe under Medicare Part D?
In 2023, Kory Mace, MD wrote 2,942 Medicare Part D claims totaling $251K in drug costs for 397 beneficiaries.
Where is Kory Mace, MD located?
Kory Mace, MD is located at 588 E LAKEWOOD BLVD FL 1, Holland, MI, 49424. Phone: (616) 494-5800.
What is Kory Mace, MD's NPI number?
Kory Mace, MD's National Provider Identifier (NPI) is 1427460195, issued on 05/28/2014.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Kory Mace, MD prescribe most often?
Based on 2023 Medicare Part D data, Kory Mace, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kory Mace, MD accept Medicare?
Kory Mace, MD appears in CMS Medicare data with 2,942 Part D claims and 397 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kory Mace, MD's credentials?
Kory Mace, MD's NPI is 1427460195 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

Compiled from official public sources by the PlainDoctor editorial team.