DR. DIANA L MAAS MD
NPI 1427009273
Internal Medicine - Endocrinology, Diabetes & Metabolism in Milwaukee, WI

Q: What is Diana Maas's NPI number?

The NPI number for Diana Maas is 1427009273. It was assigned to this individual provider in the NPPES registry on May 15, 2006.

Q: What is Diana Maas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for Diana Maas was last updated on July 24, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.

Active since May 15, 2006PECOS Enrolled

80.46/100

CMS Quality Rating

FROEDTERT & MED COLLEGE CLIN - EAST, 9200 WEST WISCONSIN AVENUE, MILWAUKEE, WI 53226(414) 805-3666 Get Directions Write a Review

NPPES record last updated: July 24, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Diana L Maas Md NPPES

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

DR. DIANA L MAAS MD (NPI 1427009273) is an individual endocrinology, diabetes & metabolism provider in Milwaukee, Wisconsin, licensed in Wisconsin (27716) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427009273

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameDR. DIANA L MAASCredential: MD

Location AddressFROEDTERT & MED COLLEGE CLIN - EAST, 9200 WEST WISCONSIN AVENUEMilwaukee, WI 53226

Mailing Address9200 W Wisconsin Ave, Froedtert & Med College Clin - EastMilwaukee, WI 53226-3522

Phone(414) 805-3666

Sole ProprietorNo

Enumeration DateMay 15, 2006

Last NPPES UpdateJuly 24, 2019

✔ NPI 1427009273 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in WI · 27716

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

FROEDTERT & MED COLLEGE CLIN - EAST, Milwaukee, WI 53226

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Other Identifiers 2

Medicaid1427009273WI

Other002000125GHumana

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. Diana L Maas Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53226 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.46/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

66.24

Promoting Interoperability

100

Improvement Activities

Cost

68.64

Referred Medical Equipment & Supplies CMS DME claims 2

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

7 suppliers20 claims102 services$6.23 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

3 suppliers33 claims33 services$192.92 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 11

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

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