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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. MARIANO L ROSALES JR. M.D.
NPI 1982658118
Internal Medicine - Adolescent Medicine in Waupun, WI

Active since May 20, 2006PECOS Enrolled
600 FERN ST, WAUPUN, WI 53963(920) 324-3559(920) 324-0258 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Jul 21, 2022 (2 updates tracked since 2022).

About Dr. Mariano L Rosales Jr. M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARIANO L ROSALES JR. M.D. (NPI 1982658118) is an individual adolescent medicine provider in Waupun, Wisconsin, licensed in Wisconsin (21906) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982658118
Entity TypeIndividualMale
Primary Taxonomy207RA0000X
Provider Legal NameDR. MARIANO L ROSALES JR.Credential: M.D.
Location Address600 FERN STWaupun, WI 53963-1018
Mailing Address600 Fern StWaupun, WI 53963-1018 · (920) 324-3559 · Fax (920) 324-0258
Phone(920) 324-3559
Fax(920) 324-0258
Sole ProprietorNo
Enumeration DateMay 20, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1982658118 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Adolescent MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RA0000X
License✔ Licensed in WI · 21906
Definition

An internist who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.

600 FERN ST, Waupun, WI 53963
Open in Google Maps ↗

Other Identifiers 1

Medicaid30219800WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Quartz.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mariano L Rosales Jr. M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
36 services18 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
13 services12 patients

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
3 suppliers22 claims51 services$5.45 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARIANO L. ROSALES JR., M.D. S.C.
Clinic/Center
600 FERN ST
WAUPUN, WI 53963
Fond Du Lac County (920) 324-3559
HEART CARE ASSOCIATES
Internal Medicine (Cardiovascular Disease)
600 FERN ST
WAUPUN, WI 53963
Fond Du Lac County (920) 251-3981

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mariano Rosales's NPI number?

The NPI number for Mariano Rosales is 1982658118. It was assigned to this individual provider in the NPPES registry on May 20, 2006.

Where is Mariano Rosales located?

Mariano Rosales practices at 600 Fern St, Waupun, WI 53963. The listed phone number is (920) 324-3559.

What is Mariano Rosales's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Adolescent Medicine, with taxonomy code 207RA0000X.

Is Mariano Rosales enrolled in Medicare?

Yes. Mariano Rosales is registered in the Medicare PECOS enrollment system.

What insurance does Mariano Rosales accept?

Health plans from Quartz list Mariano Rosales as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mariano Rosales was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.