2026 NPPES data Urology Physician NPI 1588684336 M.D.
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MARSHALL KAMER, M.D.

Urology Physician in PORT HURON, Michigan. 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
19
Medicare Part D claims · 11 beneficiaries · Urology Physician avg: 1K
Industry payments
$17.97
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARSHALL KAMER, M.D. is a Urology Physician ([object Object]) practicing in PORT HURON, Michigan with a Medicare Part D prescribing footprint of 19 claims across 11 beneficiaries . Industry payments of $17.97 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARSHALL KAMER, M.D. filed 19 Medicare Part D claims in 2023 across PORT HURON, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MARSHALL KAMER, 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).

MARSHALL KAMER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/21/2006

NPI 1588684336

Primary specialty

Urology Physician

Mid-sized

13,350 US NPIs in this specialty

Medicare Part D claims

19 99% vs specialty avg

2023 prescription claims

Specialty avg: 1,280

Specialty distribution in Michigan

How Urology Physician compares to other specialties among Michigan providers

Michigan providers

Urology Physician share within Michigan

1. Urology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urology Physician share within Michigan

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Urology 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).

MARSHALL KAMER, M.D. is a Urology Physician provider practicing in PORT HURON, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1588684336. 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.

MARSHALL KAMER, M.D. appears in the CMS NPPES registry as a Urology Physician provider holding M.D. credentials at 1037 WATER ST, PORT HURON, MI, 48060, with a listed phone of (810) 984-4194. NPI 1588684336 was issued on 07/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KAMER 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 19 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $455 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.

Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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

1037 WATER ST
PORT HURON, MI 48060

Provider Details

NPI 1588684336
Specialty Urology Physician
Credentials M.D.
Gender Male
NPI Issued 07/21/2006

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 MARSHALL KAMER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$18

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.

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 MARSHALL KAMER, M.D.. To verify MARSHALL KAMER, M.D.'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.

19
Total Claims
$455
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
45
Total Day Supply
1,219
Brand Drug Cost
$0
Generic Drug Cost
$455

Patient Demographics

Average Patient Age
77.0 years
Avg HCC Risk Score
0.74

Urology Physician Overview

How MARSHALL KAMER, M.D. fits within the Urology Physician landscape nationally.

13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider

MARSHALL KAMER, M.D.'s 19 claims are below the specialty average of 1,280.

Nearby Urology Physician Providers in Michigan

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

Compare Urology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARSHALL KAMER, M.D.'s specialty?
MARSHALL KAMER, M.D. specializes in Urology Physician and practices in PORT HURON, Michigan. Credentials: M.D..
How much does MARSHALL KAMER, M.D. prescribe under Medicare Part D?
In 2023, MARSHALL KAMER, M.D. wrote 19 Medicare Part D claims totaling $455 in drug costs for 11 beneficiaries.
Where is MARSHALL KAMER, M.D. located?
MARSHALL KAMER, M.D. is located at 1037 WATER ST, PORT HURON, MI, 48060. Phone: (810) 984-4194.
What is MARSHALL KAMER, M.D.'s NPI number?
MARSHALL KAMER, M.D.'s National Provider Identifier (NPI) is 1588684336, issued on 07/21/2006.
How many Urology Physician providers are there in the US?
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
Does MARSHALL KAMER, M.D. accept Medicare?
MARSHALL KAMER, M.D. appears in CMS Medicare data with 19 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARSHALL KAMER, M.D.'s credentials?
MARSHALL KAMER, M.D.'s NPI is 1588684336 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.
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