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RYAN D HOLZMACHER MD
NPI 1598700601
Internal Medicine in Greenfield, WI

Active since June 20, 2006PECOS EnrolledAccepts Medicare Assignment
5017 S 110TH ST, GREENFIELD, WI 53228(414) 301-3531 Get Directions Write a Review

NPPES record last updated: September 20, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ryan D Holzmacher Md NPPES

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

RYAN D HOLZMACHER MD (NPI 1598700601) is an individual internal medicine provider in Greenfield, Wisconsin, licensed in Wisconsin (42642-020) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Waukesha Memorial Hospital, and is a graduate of Southern Illinois University School Of Medicine (1999).

NPPES Registry Identity

NPI1598700601
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameRYAN D HOLZMACHERCredential: MD
Location Address5017 S 110TH STGreenfield, WI 53228-3131
Mailing Address19050 Blue Ridge CtBrookfield, WI 53045-5103 · (414) 202-1724
Phone(414) 301-3531
Sole ProprietorNo
Medical School CMSSouthern Illinois University School Of MedicineGraduated 1999
Enumeration DateJune 20, 2006
Last NPPES UpdateSeptember 20, 2024
NPPES CertifiedSeptember 20, 2024
✔ NPI 1598700601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 42642-020
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X · License 42642-020 (WI)
Also ListedPain Medicine · Pain MedicineTaxonomy 208VP0000X · License 42642-020 (WI)
5017 S 110TH ST, Greenfield, WI 53228
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Other Identifiers 1

Medicaid34749000WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ryan D Holzmacher Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214909761
PECOS Enrollment IDI20060905000204
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 8

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
2,879 services584 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
383 services223 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
345 services313 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
319 services149 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
110 services92 patients
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349
An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.
43 services35 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Waukesha Memorial Hospital

Acute Care Hospitals · Waukesha, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520008
Location725 American AveWaukesha, WI 53188 · Waukesha County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53228 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

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

POST ACUTE SPECIALTY HOSPITAL OF MILWAUKEE LLC
Long Term Care Hospital
5017 S 110TH ST
GREENFIELD, WI 53228
Milwaukee County (414) 427-8282
TRANSITIONAL HOSPITALS CORPORATION OF WISCONSIN, INC.
Long Term Care Hospital
5017 S 110TH ST
GREENFIELD, WI 53228
Milwaukee County (414) 427-8282
TRANSITIONAL HOSPITALS CORPORATION OF WISCONSIN, INC.
Specialist
5017 S 110TH ST
GREENFIELD, WI 53228
Milwaukee County (414) 427-8282
LANDMARK RECOVERY OF GREENFIELD LLC
Substance Abuse Rehabilitation Facility
5017 S 110TH ST
GREENFIELD, WI 53228
Milwaukee County (855) 950-5035

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 Ryan Holzmacher's NPI number?

The NPI number for Ryan Holzmacher is 1598700601. It was assigned to this individual provider in the NPPES registry on June 20, 2006.

Where is Ryan Holzmacher located?

Ryan Holzmacher practices at 5017 S 110th St, Greenfield, WI 53228. The listed phone number is (414) 301-3531.

What is Ryan Holzmacher's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ryan Holzmacher enrolled in Medicare?

Yes. Ryan Holzmacher is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ryan Holzmacher accept?

Health plans from Anthem Blue Cross and Blue Shield and CareSource (Common Ground Healthcare) list Ryan Holzmacher 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.

Is Ryan Holzmacher affiliated with any hospitals?

According to CMS data, Ryan Holzmacher is affiliated with Waukesha Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Ryan Holzmacher was last updated on September 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.