Douglas E Puffer, MD - Medicare Hematology/oncology in Mequon, WI

Douglas E Puffer, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Mequon, Wisconsin. He went to Ohio State University College Of Medicine and graduated in 1997 and has 27 years of diverse experience with area of expertise as Hematology/oncology. He is a member of the group practice Columbia St Marys Hospital Milwaukee Inc and his current practice location is 13111 N Port Washington Rd, Mequon, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (262) 243-7454.

Douglas E Puffer is licensed to practice in Wisconsin (license number 40365-020) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1366463267.

Contact Information

Douglas E Puffer, MD
13111 N Port Washington Rd,
Mequon, WI 53097-2416
(262) 243-7454
(262) 243-7482

Map and Direction




Physician's Profile

Full NameDouglas E Puffer
GenderMale
SpecialityHematology/oncology
Experience27 Years
Location13111 N Port Washington Rd, Mequon, Wisconsin
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Douglas E Puffer attended and graduated from Ohio State University College Of Medicine in 1997
  NPI Data:
  • NPI Number: 1366463267
  • Provider Enumeration Date: 07/23/2006
  • Last Update Date: 10/22/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 0143323840
  • Enrollment ID: I20070319000336

Medical Identifiers

Medical identifiers for Douglas E Puffer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366463267NPI-NPPES
PUFFEDOUOtherWIMERCYCARE INSURANCE
34425400MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 40365-020 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ascension Columbia St Mary's Hospital MilwaukeeMilwaukee, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Columbia St Marys Hospital Milwaukee Inc5890604722270

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. Douglas E Puffer allows following entities to bill medicare on his behalf.
Entity NameColumbia St Marys Hospital Milwaukee Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023064482
PECOS PAC ID: 5890604722
Enrollment ID: O20031105000057
Entity NameMercy Health System Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598718603
PECOS PAC ID: 7416860440
Enrollment ID: O20031113000164

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. Douglas E Puffer 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
Douglas E Puffer, MD
4425 N Port Washington Road, Csmcp Clinic Credentialing,
Glendale, WI 53212-1082

Ph: (414) 326-2378
Douglas E Puffer, MD
13111 N Port Washington Rd,
Mequon, WI 53097-2416

Ph: (262) 243-7454

Reviews and Comments


Internal Medicine Doctors in Mequon, WI

Marsha Fleming Davis, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1516 W Mequon Rd, Suite 103, Mequon, WI 53092
Phone: 262-242-0700    Fax: 262-242-0710
George Albert Munkwitz, M.D.
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 2300 W. Bonniwell Rd., Mequon, WI 53097
Phone: 262-243-5861    
Norine T. Nazareth, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 12203 Corporate Pkwy, Mequon, WI 53092
Phone: 262-387-8200    Fax: 262-387-8271
Luke F Rehrauer, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 12203 N Corporate Pkwy, Mequon, WI 53092
Phone: 262-387-8200    Fax: 262-387-8271
Sonya Chalasani Rayan, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 13133 N Port Washington Rd, Suite 206, Mequon, WI 53097
Phone: 262-243-7680    Fax: 262-243-7770
Keely Bornor Browning,
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 13133 N Port Washington Rd Ste G16, Mequon, WI 53097
Phone: 262-243-2500    
Drew M Elgin, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 13133 N Port Washington Rd, Suite G16, Mequon, WI 53097
Phone: 262-243-2500    Fax: 262-243-5395

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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