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Internal Medicine

Richard W. Theobald, MD

Works at hospitals in Green Bay, WI · Two Rivers, WI · Sheboygan, WI … · Wisconsin

Summary

Dr. Richard W. Theobald, MD is an internal medicine doctor at 1020 N 12th St, Milwaukee, WI 53233. Phone: (414) 219-3056. Accepts Medicare assignment. In 2024, Richard W. Theobald had 483 Original Medicare patients and 2,303 services. NPI 1952418063. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Richard W. Theobald, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Richard W. Theobald accept Medicare assignment?
Yes. Medicare's clinician data says Richard W. Theobald accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Richard W. Theobald see?
In 2024, CMS data shows 483 Original Medicare patients and 2,303 services for Richard W. Theobald. This counts Original Medicare only and measures volume, not quality.
What is Richard W. Theobald's NPI number?
1952418063. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Richard W. Theobald, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients483
Services billed to Medicare2,303
Different services or procedures40
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)465 services
  2. Anticoagulant management of patient taking warfarin (93793)319 services
  3. Blood test, clotting time (85610)239 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)220 services
  5. Face-to-face behavioral counseling for obesity, group (2-10), 30 minutes (G0473)159 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis43%
  • Chronic kidney disease39%
  • Diabetes36%
  • Ischemic heart disease35%

Hospitals where Richard W. Theobald works

Medicare's Facility Affiliation Data lists Richard W. Theobald at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Richard W. Theobald is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Richard W. Theobald as a member of this group (CMS data updated October 2, 2026).

  • Aurora Medical Group, Inc.3,813 clinicians in the group

Specialties

Find other Internal Medicine doctors in Wisconsin →

Other internal medicine doctors in Milwaukee

Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.

All internal medicine doctors in Milwaukee →

Other clinicians in Aurora Medical Group, Inc.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1952418063
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians