DR. WILLIAM R. SHAFFER M.D.
NPI 1801044722
Psychiatry & Neurology - Neurology in Boulder, CO

Active since September 04, 2008PECOS EnrolledAccepts Medicare Assignment
97.58/100
CMS Quality Rating
4801 RIVERBEND RD STE 200, BOULDER, CO 80301(303) 415-8800(303) 415-8801 Get Directions Write a Review

NPPES record last updated: September 27, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 27, 2024, Apr 13, 2017, Feb 15, 2017 and 1 more (4 updates tracked since 2017).

About Dr. William R. Shaffer M.d. NPPES

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

DR. WILLIAM R. SHAFFER M.D. (NPI 1801044722) is an individual neurology provider in Boulder, Colorado, licensed in Colorado (DR.0047669) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Fort Collins, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1801044722
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. WILLIAM R. SHAFFERCredential: M.D.
Location Address4801 RIVERBEND RD STE 200Boulder, CO 80301-2613
Mailing AddressPo Box 9049Boulder, CO 80301-9049 · (303) 415-8800
Fax(303) 415-8801
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateSeptember 4, 2008
Last NPPES UpdateSeptember 27, 20244 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2024
NPI 1801044722 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses Licensed in CO · DR.0047669 Licensed in IL · 036.121384
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
4801 RIVERBEND RD STE 200, Boulder, CO 80301

Secondary Practice Location 1

Location 12315 E Harmony Rd, Suite 110Fort Collins, CO 80528-8620 · Phone (970) 482-4373 · Fax (970) 484-5682

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. William R. Shaffer M.d. 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 ID3274686761
PECOS Enrollment IDI20090813000338
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.

Areas of Expertise CMS Part B claims 3

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
93 services80 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
82 services82 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
40 services38 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80301 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
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 7

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

Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Registered Nurse
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Clinic/Center (Medical Specialty)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Physician Assistant (Medical)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Shaffer's NPI number?

The NPI number for William Shaffer is 1801044722. It was assigned to this individual provider in the NPPES registry on September 4, 2008.

Where is William Shaffer located?

William Shaffer practices at 4801 Riverbend Rd Ste 200, Boulder, CO 80301. The listed phone number is (303) 415-8800.

What is William Shaffer's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is William Shaffer enrolled in Medicare?

Yes. William Shaffer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Shaffer accept?

Health plans from Medica list William Shaffer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Shaffer was last updated on September 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.