Dr David Larson Demill, MD - Medicare Ophthalmology in Portland, OR

Dr David Larson Demill, MD is a medicare enrolled "Ophthalmology - Cornea And External Diseases Specialist" physician in Portland, Oregon. He went to University Of Utah School Of Medicine and graduated in 2012 and has 12 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Intermountain Healthcare Services, Inc and his current practice location is 1040 Nw 22nd Ave, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 413-8498.

Dr David Larson Demill is licensed to practice in North Dakota (license number 15521) 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 1366783631.

Contact Information

Dr David Larson Demill, MD
1040 Nw 22nd Ave,
Portland, OR 97210-3057
(503) 413-8498
Not Available

Map and Direction




Physician's Profile

Full NameDr David Larson Demill
GenderMale
SpecialityOphthalmology
Experience12 Years
Location1040 Nw 22nd Ave, Portland, Oregon
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:
  • Dr David Larson Demill attended and graduated from University Of Utah School Of Medicine in 2012
  NPI Data:
  • NPI Number: 1366783631
  • Provider Enumeration Date: 03/11/2013
  • Last Update Date: 05/02/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 6204131618
  • Enrollment ID: I20170616000993

Medical Identifiers

Medical identifiers for Dr David Larson Demill such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366783631NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207WX0120XOphthalmology - Cornea And External Diseases Specialist 10215714-8905 (Utah)Secondary
207WX0120XOphthalmology - Cornea And External Diseases Specialist 01081680A (Indiana)Secondary
207WX0120XOphthalmology - Cornea And External Diseases Specialist 15521 (North Dakota)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Alta View HospitalSandy, UTHospital
St Mark's HospitalSalt lake city, UTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Intermountain Healthcare Services, Inc18502094203063

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 David Larson Demill allows following entities to bill medicare on his behalf.
Entity NameIhc Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942325154
PECOS PAC ID: 1850209420
Enrollment ID: O20080610000303
Entity NameCorey A Miller Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689693814
PECOS PAC ID: 0143466334
Enrollment ID: O20130412000388

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 David Larson Demill 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 David Larson Demill, MD
1040 Nw 22nd Ave,
Portland, OR 97210-3057

Ph: (503) 413-8498
Dr David Larson Demill, MD
1040 Nw 22nd Ave,
Portland, OR 97210-3057

Ph: (503) 413-8498

Reviews and Comments


Ophthalmology Doctors in Portland, OR

Amy Ying Tong, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1955 Nw Northrup St, Portland, OR 97209
Phone: 503-227-2020    
Sungjae Yang,
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 3375 Sw Terwilliger Bld, Casey Eye Institue, Portland, OR 97239
Phone: 503-494-5023    
Dr. Michael David Straiko, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1040 Nw 22nd Ave., Suite 200, Portland, OR 97210
Phone: 503-413-8202    Fax: 503-413-6937
Allison Rebecca Loh, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3375 Sw Terwilliger Blvd, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-494-4286
John Carl Morrison, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3303 Sw Bond Ave, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-418-0843
Adam Marcus Hanif,
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-494-4286
Mr. John Jah-hyun Koo, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3600 N. Interstate Avenue, Department Of Opthalmology, Portland, OR 97227
Phone: 503-331-6330    Fax: 503-571-5877

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.