Dr Diana L Maas, MD - Medicare Endocrinology in Milwaukee, WI

Dr Diana L Maas, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Milwaukee, Wisconsin. She went to Medical College Of Wisconsin and graduated in 1985 and has 39 years of diverse experience with area of expertise as Endocrinology. She is a member of the group practice The Medical College Of Wisconsin Inc and her current practice location is Froedtert & Med College Clin - East, 9200 West Wisconsin Avenue, Milwaukee, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (414) 805-3666.

Dr Diana L Maas is licensed to practice in Wisconsin (license number 27716) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1427009273.

Contact Information

Dr Diana L Maas, MD
Froedtert & Med College Clin - East, 9200 West Wisconsin Avenue,
Milwaukee, WI 53226
(414) 805-3666
Not Available



Physician's Profile

Full NameDr Diana L Maas
GenderFemale
SpecialityEndocrinology
Experience39 Years
LocationFroedtert & Med College Clin - East, Milwaukee, Wisconsin
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Diana L Maas attended and graduated from Medical College Of Wisconsin in 1985
  NPI Data:
  • NPI Number: 1427009273
  • Provider Enumeration Date: 05/15/2006
  • Last Update Date: 07/24/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 3779591839
  • Enrollment ID: I20060330000672

Medical Identifiers

Medical identifiers for Dr Diana L Maas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427009273NPI-NPPES
002000125GOtherHUMANA
1427009273MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 27716 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Froedtert Memorial Lutheran HospitalMilwaukee, WIHospital
United Hospital SystemKenosha, WIHospital
St Josephs Community Hospital West BendWest bend, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Medical College Of Wisconsin Inc26683843711813

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Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Diana L Maas allows following entities to bill medicare on her behalf.
Entity NameThe Medical College Of Wisconsin Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699720086
PECOS PAC ID: 2668384371
Enrollment ID: O20031120000259

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Diana L Maas is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Diana L Maas, MD
9200 W Wisconsin Ave, Froedtert & Med College Clin - East,
Milwaukee, WI 53226-3522

Ph: () -
Dr Diana L Maas, MD
Froedtert & Med College Clin - East, 9200 West Wisconsin Avenue,
Milwaukee, WI 53226

Ph: (414) 805-3666

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A new study by researchers at Harvard supports earlier findings by a panel of experts that abortions and miscarriages do not increase a woman's risk of getting breast cancer.

Acid reflux drug could help newborns recover from hypoxic-ischemic encephalopathy

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Ebola worries renew push for Surgeon General pick

More than two dozen House Democrats have called on the Senate to confirm Dr. Vivek Murthy, the Obama administration's pick for U.S. Surgeon General, so he could help lead the nation's Ebola response. But Senate support remains shaky because of Murthy's outspoken views on gun violence, which have drawn the wrath of the National Rifle Association.

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Internal Medicine Doctors in Milwaukee, WI

Julia Bonner, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 3351 North Downer Avenue, Milwaukee, WI 53211
Phone: 414-229-5684    
Dr. Zachary Smith, DO
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 9200 W Wisconsin Ave, Milwaukee, WI 53226
Phone: 414-955-6830    Fax: 414-955-6214
Dr. Christopher Patrick Boyd, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 9200 W Wisconsin Ave, Milwaukee, WI 53226
Phone: 414-805-6000    Fax: 414-805-6280
Umair Bajwa, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 9200 W Wisconsin Ave, Milwaukee, WI 53226
Phone: 414-805-0812    Fax: 414-805-0855
Dr. Jeffrey Wilson, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1020 N 12th St, Ste 206, Milwaukee, WI 53233
Phone: 414-219-7136    
Rasika Surajyam Chepuri, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 9200 W Wisconsin Ave, Milwaukee, WI 53226
Phone: 414-955-7040    Fax: 414-955-6211
Soryal A Soryal, M.D
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1020 N 12th St, 3rd Floor, Milwaukee, WI 53233
Phone: 414-219-7300    

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