MICHAEL A. LENZ (M.D.) – Internal Medicine Physician, NPI 1609848167

MICHAEL A. LENZ (M.D.) is a healthcare provider. based in Wauwatosa, Wisconsin. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 42188 (WI). The NPI Number for MICHAEL A. LENZ (M.D.) is 1609848167

Main info

Male
30 Years Of Experience
Accepts Medicare Assignment
Name
MICHAEL A. LENZ (M.D.)
NPI
1609848167
Phone
(414) 955-5990
Address
1155 N MAYFAIR RD
Enumeration Date
7 February 2006
Last Update Date
21 July 2023

Doctor Profile

Medical School Name
MEDICAL COLLEGE OF WISCONSIN
Secondary Phone
2622552500
Graduation Year
1996 (30 years ago)
PAC ID
9335242247
Group Practice PAC ID
3678760063
Professional Enrollment ID
I20070314000406
Address ID
WI530514002MEW180NRDXX400
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:20State licenses:1Digital endpointsOther names

2,941 INTERNAL MEDICINE in WI

Provider Addresses for MICHAEL A. LENZ (M.D.)

  • 1155 N MAYFAIR RD

    WAUWATOSA, WI 532263462

    Phone: (414) 955-5990

    Type: Mailing

  • Golf Road, Delafield, Waukesha County, Wisconsin, 53018, United States

    PROHEALTH CARE MEDICAL ASSOCIATES INC

    DELAFIELD, WI 530182062

    Phone: (262) 928-4900

    Fax: (262) 928-4960

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2007-03-14

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20070314000406IInternal MedicineWITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
36415Insertion of needle into vein for collection of blood sample238199$0
99214Established patient office or other outpatient visit, 30-39 minutes13484$0
99213Established patient office or other outpatient visit, 20-29 minutes8062$0
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit3232$0
99215Established patient office or other outpatient visit, 40-54 minutes1714$0
View full utilization report →

Insurance plans in this area (ZIP 53226)

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Provider's Procedures

MICHAEL A. LENZ (M.D.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PEDIATRIC MEDICINEWI90670Pneumococcal vaccine for injection into muscle4747

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3678760063View full group profile
NameSpecialtyState
-WI
-WI
Diagnostic RadiologyWI
Family Practice, Emergency MedicineWI
P S Y C H I A T R YWI
Internal MedicineWI
-WI
-WI
Physical Therapist In Private PracticeWI
-WI

Reviews

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Frequently asked questions

What is MICHAEL A. LENZ (M.D.)'s NPI number?
MICHAEL A. LENZ (M.D.)'s NPI is 1609848167 — the number used across U.S. healthcare to identify this provider.
Is MICHAEL A. LENZ (M.D.) shown as active in public data?
Registry records indicate MICHAEL A. LENZ (M.D.) maintains an active NPI.
What expertise is attributed to MICHAEL A. LENZ (M.D.)?
MICHAEL A. LENZ (M.D.)'s specialty line reads Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Is MICHAEL A. LENZ (M.D.) associated with Wauwatosa?
Public fields place MICHAEL A. LENZ (M.D.) around Wauwatosa, Wisconsin. Always confirm the exact site before visiting.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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