MELISSA WILLITZER PA-C
NPI 1447607577
Physician Assistant in Portland, OR


Quality Rating: 95.23 out of 100 score

NPI Status: Active since May 18, 2016

Contact Information

3181 SW SAM JACKSON PARK RD
PORTLAND, OR
ZIP 97239
Phone: (503) 494-7500

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  • Individual
  • Female
  • Physician Assistant
  • Accepts Insurance
  • PECOS Enrolled

About MELISSA WILLITZER

This page provides the complete NPI Profile along with additional information for Melissa Willitzer, a primary care provider established in Portland, Oregon with a medical specialization in Physician Assistant. The healthcare provider is registered in the NPI registry with number 1447607577 assigned on May 2016. The practitioner's primary taxonomy code is 363A00000X with license number 184240 (OR). The provider is registered as an individual and her NPI record was last updated 7 years ago.

NPI
1447607577
Provider Name
MELISSA WILLITZER PA-C
Gender
Female
Entity Type
Individual
Location Address
3181 SW SAM JACKSON PARK RD PORTLAND, OR 97239
Location Phone
(503) 494-7500
Mailing Address
1834 NE SCHUYLER ST PORTLAND, OR 97212
Mailing Phone
(503) 793-3019
Is Sole Proprietor?
No
Enumeration Date
05-18-2016
Last Update Date
02-09-2019
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A primary care provider (PCP) like Melissa Willitzer sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Secondary Locations

  • 2730 SW Moody Ave CL5PA
    Portland, OR 97201
    (405) 204-0092
  • 1460 G St
    Springfield, OR 97477
    (541) 726-4400

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Physician Assistant

Taxonomy Code
363A00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
184240
License State
OR
Taxonomy Description
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Navigator Bronze 7000 Exchange - PPO
  • Navigator Bronze 9200 - PPO
  • Navigator Bronze HSA 8050 - PPO
  • Navigator Gold 1500 - PPO
  • Navigator Gold 1500 Exchange - PPO
  • Navigator Gold 500 Exchange - PPO
  • Navigator Silver 3500 Exchange - PPO
  • Navigator Silver 4000 Exchange - PPO
  • Navigator Silver 5000 - PPO
  • Navigator Silver HSA 3500 - PPO
  • Navigator Standard Expanded Bronze - PPO
  • Navigator Standard Gold - PPO
  • Navigator Standard Silver - PPO
  • PacificSource Oregon Standard Bronze Plan NAV - PPO
  • PacificSource Oregon Standard Gold Plan NAV - PPO
  • PacificSource Oregon Standard Silver Plan NAV - PPO
  • HSA Qualified 7100 Bronze - Signature Network - EPO
  • HSA Qualified 7100 Bronze - Choice Network - EPO
  • Providence Oregon Standard Bronze Plan - Choice Network - EPO
  • Providence Oregon Standard Bronze Plan - Signature Network - EPO
  • Providence Oregon Standard Gold Plan - Choice Network - EPO
  • Providence Oregon Standard Gold Plan - Signature Network - EPO
  • Providence Oregon Standard Silver Plan - Choice Network - EPO
  • Providence Oregon Standard Silver Plan - Signature Network - EPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Melissa Willitzer is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Emergency department visit for life threatening or functioning severity

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

This service was performed 19 times for 17 patients

Emergency department visit for problem of high severity

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

This service was performed 27 times for 27 patients

Emergency department visit for problem of moderate severity

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

This service was performed 23 times for 23 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 97239 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $90.51
  • Minimum New Patient Price $58.99
  • Maximum New Patient Price $176.88
  • Average New Patient Copayment $22.62
  • Minimum New Patient Copayment $14.74
  • Maximum New Patient Copayment $44.22

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $73.28
  • Minimum Established Patient Price $19.32
  • Maximum Established Patient Price $144.79
  • Average Established Patient Copayment $18.32
  • Minimum Established Patient Copayment $4.83
  • Maximum Established Patient Copayment $36.19

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 95.23, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 95.23 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 75.74

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 100

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: N/A

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: N/A

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1447607577
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
248712014514
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 4 + 8 + 7 + 1 + 2 + 0 + 1 + 4 + 5 + 1 + 4 + 24 = 63
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 63 = 77

The NPI number 1447607577 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1972506301 JERRIS ROBERT HEDGES MD, MS, MMM
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD # L-102
PORTLAND, OR 97239
(503) 494-2767
1720082357DR. BRANDON ZANE HOROWITZ M.D.
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
(503) 494-4833
1770587222 MARY ANN BROWNING FNP
Individual
Nurse Practitioner (Family)3181 SW SAM JACKSON PARK RD CDW-EM
PORTLAND, OR 97239
(503) 494-7500
1427052166DR. ROBERT AUGUSTUS LOWE MD, MPH
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
(503) 494-7134
1629073895DR. MOHAMUD RAMZANALI DAYA MD, M S
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD MAILCODE CDW-EM
PORTLAND, OR 97239
(503) 494-7248
1720083991DR. RITU SAHNI MD
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD # CDW
PORTLAND, OR 97239
(503) 494-7500
1336144450DR. ALFREDO SABBAJ MD
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD MAIL CODE: CDW-EM
PORTLAND, OR 97239
(503) 494-1475
1467457192 ROBERT G HENDRICKSON MD
Individual
Emergency Medicine (Medical Toxicology)3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
(503) 494-9495
1912907908DR. JONATHAN JUI M.D.
Individual
Emergency Medicine3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
(503) 494-7500
1013918267DR. JAMES CHRISTOPHER AUSTIN MD
Individual
Urology (Pediatric Urology)3181 SW SAM JACKSON PARK RD PEDIATRIC UROLOGY CDW-6
PORTLAND, OR 97239
(503) 494-4808
1285626507 JENNIFER R ANTICK PHD
Individual
Psychologist (Clinical)3181 SW SAM JACKSON PARK RD UHN 80
PORTLAND, OR 97239
(503) 494-7353
1043206279MS. MICHELE PATRICIA MEGREGIAN CNM
Individual
Advanced Practice Midwife3181 SW SAM JACKSON PARK RD KPV7C
PORTLAND, OR 97239
(503) 418-4500
1285615781 SUSAN ROWELL M.D.
Individual
Surgery (Trauma Surgery)3181 SW SAM JACKSON PARK RD L611
PORTLAND, OR 97239
(503) 494-2400
1104809920 DAVID MARK SPIRO MD
Individual
Pediatrics (Pediatric Emergency Medicine)3181 SW SAM JACKSON PARK RD MAIL CODE CDW-EM
PORTLAND, OR 97239
(503) 494-0828
1457337123MR. PETER CHORDAS FNP-C
Individual
Nurse Practitioner3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
(503) 494-1368
1174509897DR. PASCALE M SCHWAB M.D.
Individual
Internal Medicine (Rheumatology)3181 SW SAM JACKSON PARK RD OP09
PORTLAND, OR 97239
(503) 494-8963
1104896786DR. STEVEN JOHN SKOOG
Individual
Urology (Pediatric Urology)3181 SW SAM JACKSON PARK RD CDW6
PORTLAND, OR 97239
(503) 494-4808
1760456925DR. CRAIGAN TODD USHER MD
Individual
Psychiatry & Neurology (Psychiatry)3181 SW SAM JACKSON PARK RD MAIL CODE DC7P
PORTLAND, OR 97239
(503) 418-5775
1093780769DR. NORMAN A. COHEN MD
Individual
Anesthesiology3181 SW SAM JACKSON PARK RD UHS-2
PORTLAND, OR 97239
(503) 494-7641
1285609917DR. DAWN LYNN NOLT MD
Individual
Pediatrics (Pediatric Infectious Diseases)3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
(503) 494-9690

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447607577, enumerated in the NPI registry as an "individual" on May 18, 2016

The provider is located at 3181 Sw Sam Jackson Park Rd Portland, Or 97239 and the phone number is (503) 494-7500

The provider's speciality is Physician Assistant with taxonomy code 363A00000X

The provider might be accepting Accepts: PacificSource Health Plans and Providence Health. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The provider has an overall high rating in the following quality measures: uses technology to exchange and make use of healthcare information.

Medicare beneficiaries should expect a typical cost of $90.51 with an average copayment of $22.62 for new patient appointments. Established patients should expect a typical charge of $73.28 and an average copayment of 18.32. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Emergency department visit for life threatening or functioning severity, Emergency department visit for problem of high severity and Emergency department visit for problem of moderate severity.

This NPI record was last updated on May 18, 2016. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.