David R. Maslen, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD19175 Issued in OR

Practice address

3033 SE Monroe St
Milwaukie, OR 97222-6636

Phone

(503) 659-4988

Fax

(833) 428-4932

NPI assigned

Nov 29, 2005

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in OR

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Other, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Northwest Primary Care Group PCGroup PAC ID 0244125052, 44 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence Home Health Home health agency, Portland, OR, CCN 387048
• Providence Hospice Hospice, Portland, OR, CCN 381500
• Providence Milwaukie Hospital Hospital, Milwaukie, OR, CCN 380082
• Providence Willamette Falls Medical Center Hospital, Oregon City, OR, CCN 380038

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: david.maslen.1@30939.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Northwest Primary Care Group PC

  • Family Medicine Physician
  • Portland, OR
  • NPI 1144319658
  Medicare reassignment Care Compare group NPD
• Northwest Primary Care Group PC

  • Family Medicine Physician
  • Milwaukie, OR
  • NPI 1801856737
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Providence Health & Services - Oregon

  • Clinic/Center
  • Portland, OR
  • NPI 1326272741

  Hospital

  Care Compare affiliation
• Providence Health & Services - Oregon

  • General Acute Care Hospital
  • Oregon City, OR
  • NPI 1912282369
  Care Compare affiliation
• Providence Health & Services Oregon

  • Community Based Hospice Care Agency
  • Portland, OR
  • NPI 1205924313
  Care Compare affiliation
• Providence Health & Services Oregon

  • General Acute Care Hospital
  • Milwaukie, OR
  • NPI 1366536963
  Care Compare affiliation
• Providence Health & Services Oregon

  • Home Health Agency
  • Portland, OR
  • NPI 1790873461
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1133222400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1033192521",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 22075",
            "city": "MILWAUKIE",
            "state": "OR",
            "postal_code": "972692075",
            "telephone_number": "503-659-4777",
            "fax_number": "503-652-5223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3033 SE MONROE ST",
            "city": "MILWAUKIE",
            "state": "OR",
            "postal_code": "972226636",
            "telephone_number": "503-659-4988",
            "fax_number": "833-428-4932"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASLEN",
        "first_name": "DAVID",
        "middle_name": "R.",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-29",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD19175",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "110175147",
            "state": "OR"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "077599",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Carmen D Martinez, OTR
• Heather Martinez, CSWA
• Elizabeth Martino, DPT
• Mary Bogle Psy D LLC
• Patricia Anne Maski, PHYSICAL THERAPIST
• Eileen Masover, MSW
• Markus Mastrud, RN
• Cathy I Matheson, ORTL
• Beth M Matile, DMD
• David D Matile, DMD

• Internal Medicine Physician in Milwaukie, OR
• Providers in Milwaukie, OR by specialty
• Internal Medicine Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.