MR. DAVID R. MASLEN MD
NPI 1033192521
Internal Medicine in Milwaukie, OR

Q: What is David Maslen's NPI number?

The NPI number for David Maslen is 1033192521. It was assigned to this individual provider in the NPPES registry on November 29, 2005.

Q: What is David Maslen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for David Maslen was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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 November 29, 2005PECOS EnrolledAccepts Medicare Assignment

3033 SE MONROE ST, MILWAUKIE, OR 97222(503) 659-4988(833) 428-4932 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 6, 2026, Sep 5, 2024 (2 updates tracked since 2024).

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About Mr. David R. Maslen Md NPPES

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

MR. DAVID R. MASLEN MD (NPI 1033192521) is an individual internal medicine provider in Milwaukie, Oregon, licensed in Oregon (MD19175) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Providence Willamette Falls Medical Center, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1033192521

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameMR. DAVID R. MASLENCredential: MD

Location Address3033 SE MONROE STMilwaukie, OR 97222-6636

Mailing AddressPo Box 22075Milwaukie, OR 97269-2075 · (503) 659-4777 · Fax (503) 652-5223

Phone(503) 659-4988

Fax(833) 428-4932

Sole ProprietorNo

Medical School CMSOtherGraduated 1991

Enumeration DateNovember 29, 2005

Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration

NPPES CertifiedAugust 6, 2026

✔ NPI 1033192521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in OR · MD19175

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

3033 SE MONROE ST, Milwaukie, OR 97222

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Other Identifiers 2

Other110175147OR · Rr Medicare

Medicaid077599OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. David R. Maslen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840185567

PECOS Enrollment IDI20070713000468

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.

Medicare Billing Reassignment

Medicare enrollment records show David Maslen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Primary Care Group PC

Same address

Family Medicine

3033 SE MONROE ST
Milwaukie, OR 97222

Reassigned Medicare billing, Oregon enrollment
43 clinicians in this Medicare group

NPI 1801856737 (503) 659-4988

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

222 services95 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

86 services55 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

49 services42 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

38 services36 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

35 services35 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

30 services28 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

25 services22 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

24 services16 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

21 services21 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

16 services16 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

15 services11 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

14 services13 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

13 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence Willamette Falls Medical Center

Acute Care Hospitals · Oregon City, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380038

Location1500 Division StreetOregon City, OR 97045 · Clackamas County

Emergency services Birthing friendly

Providence Portland Medical Center

Acute Care Hospitals · Portland, OR

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380061

Location4805 NE Glisan StreetPortland, OR 97213 · Multnomah County

Emergency services Birthing friendly

Providence Milwaukie Hospital

Acute Care Hospitals · Milwaukie, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number380082

Location10150 SE 32nd AvenueMilwaukie, OR 97222 · Clackamas County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97222 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

$134.16 typical visit price

range $58.99 – $176.88

Typical copayment $33.54 (range $14.74 – $44.22)

Most-billed visit code 99204

Established Patient

$103.51 typical visit price

range $19.32 – $144.79

Typical copayment $25.87 (range $4.83 – $36.19)

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.

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 suppliers21 claims48 services$6.66 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

1 supplier14 claims14 services$185.80 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 12

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

DR. JENNIFER DAWN HERBER M.D.

Family Medicine