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Douglas Alan Willaman , PA-C

Physician Assistant โ€ข Evanston, IL

Active NPI 1679619357 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

2650 Ridge Ave
Evanston, IL 602011700

Call 8475701010 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2650 Ridge Ave

Evanston, IL 602011700

Telephone 8475701010
Fax 8477335108
Organization at the Same NPPES Address or Phone
Endeavor Health Clinical Operations Facility NPI 1184670549

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Endeavor Health Medical Group. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

1996

Medicare patients

418 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $55,481 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $41,982 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $119.93 in 2023

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2023.

Guide: How to read an Open Payments record

Years since graduation

30 years (graduated 1996)

CMS Doctors and Clinicians data list 1996 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2007

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Douglas Willaman has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Douglas Willaman as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Evanston and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Evanston, IL (2024, 32 clinicians with data). Median for this group: 168. Middle half: 50 to 298.

More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: 212. Middle half: 76 to 548.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Evanston, IL (2024, 32 clinicians with data). Median for this group: $14,918. Middle half: $4,743 to $21,031.

A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: $16,580. Middle half: $6,650 to $35,717.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Evanston, IL (2024, 32 clinicians with data). Median for this group: $11,585. Middle half: $3,772 to $15,614.

A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: $12,415. Middle half: $4,894 to $26,472.

77 active clinicians are listed under Physician Assistant with a practice address in Evanston, IL (4,929 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Evanston

16.9% of these 77 clinicians have the CMS telehealth indicator.

44.2% of these 77 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2023
Disclosure Year:

Program year 2023 (payments made January 1 โ€“ December 31, 2023): fewer than 11 records totaling $119.93.

Manufacturer Payment Nature Product Type Amount ($)
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $119.93

Source: CMS Open Payments, program year 2023, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2019โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
159 120 $160.00 $70.50
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
143 136 $153.00 $86.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
85 85 $129.00 $74.64
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
80 54 $229.00 $106.09
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
44 34 $93.00 $44.75
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
40 40 $293.00 $117.81
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
36 35 $269.00 $129.23
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
32 32 $246.00 $119.16
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
12 12 $428.00 $155.03

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-03-19
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES IL 085003064

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.

Physician Assistant - Medical

NUCC Taxonomy Code: 363AM0700X

License # reported to NPPES PA MA002258L
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20090930000167

Enrollment State Jurisdiction

IL

PECOS Control ID

0648379230

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Endeavor Health Medical Group

9600 Gross Point Rd, Skokie, IL 600761214

Endeavor Health Medical Group

2650 Ridge Ave, Evanston, IL 602011700

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
NPI 1710592589

Doctor of Medicine (M.D.)

NPI 1962813907

Doctor of Osteopathic Medicine (D.O.)

NPI 1679702591

Doctor of Medicine (M.D.)

NPI 1295146421

Doctor of Medicine (M.D.)

NPI 1528677135

Doctor of Medicine (M.D.)

NPI 1851354484

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
๐Ÿ“
Updated Practice Location March 19, 2026

Registered at 2650 RIDGE AVE, EVANSTON, IL 602011700 (Tel: 8475701010)

๐Ÿ“
Updated Business Mailing Address March 19, 2026

Registered at 2650 RIDGE AVE STE 1223, EVANSTON, IL 602011700 (Tel: 8475702040)

โœ…
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) July 08, 2007

Registered at 3104 UNIONVILLE RD, 100 CRANBERRY BUSINESS PARK, SUITE 180, CRANBERRY TWP, PA 160663415 (Tel: 7247722664)

๐Ÿ“
Business Mailing Address (Initial Record) July 08, 2007

Registered at 117 STONEY CREEK CT, SEVEN FIELDS, PA 160467915 (Tel: 7247661619)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) July 08, 2007

Recorded as DOUGLAS WILLAMAN, PA-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Physician Assistant (license number reported to NPPES: PA MA002258L)

๐ŸŸข
Initial NPI Registration & Enumeration January 29, 2007

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1679619357
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 29, 2007
Last Update: March 19, 2026
Sole Proprietor: No

Other Physician Assistants in Evanston

All Physician Assistants in Evanston

Mailing Address

2650 Ridge Ave Ste 1223

Evanston, IL 602011700

Phone: 8475702040

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.