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ALEXANDRA DUFFY D.O.
NPI 1316212814
Psychiatry & Neurology - Neurology in Sacramento, CA

Active since March 15, 2012PECOS EnrolledAccepts Medicare Assignment
4860 Y ST, SACRAMENTO, CA 95817(916) 703-5078 Get Directions Write a Review

NPPES record last updated: March 15, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Alexandra Duffy D.o. NPPES

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

ALEXANDRA DUFFY D.O. (NPI 1316212814) is an individual neurology provider in Sacramento, California, licensed in California (20A12176) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1316212814
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameALEXANDRA DUFFYCredential: D.O.
Location Address4860 Y STSacramento, CA 95817-2307
Mailing Address4860 Y StSacramento, CA 95817-2307 · (916) 703-5078
Phone(916) 703-5078
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateMarch 15, 2012
✔ NPI 1316212814 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · 20A12176
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.
4860 Y ST, Sacramento, CA 95817
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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

Alexandra Duffy D.o. 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 ID9830318773
PECOS Enrollment IDI20140908002602
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 Alexandra Duffy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The Univ Of Ca
Same address
Urogynecology and Reconstructive Pelvic Surgery
4860 Y ST
Sacramento, CA 95817
  • Reassigned Medicare billing, California enrollment
  • 2,570 clinicians in this Medicare group
NPI 1285068783 (916) 734-6483

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 6

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.
206 services152 patients
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.
104 services94 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.
46 services25 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
42 services19 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.
29 services28 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95817 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
$137.20 typical visit price
range $60.44 – $180.85
Typical copayment $34.30 (range $15.11 – $45.21)
Most-billed visit code 99204
Established Patient
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
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

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$14.23 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 20

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

MICHELLE PALVOLGYI M.D.
Student in an Organized Health Care Education/Training Program
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5292
KATHRYN D NEWELL M.D.
Internal Medicine
4860 Y ST, SUITE 0101
SACRAMENTO, CA 95817
Sacramento County (916) 734-4843
DR. SARAH GONG MD
Internal Medicine
4860 Y ST, SUITE 0100
SACRAMENTO, CA 95817
Sacramento County (916) 734-3514
BRIAN JOVES M.D.
Physical Medicine & Rehabilitation
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5292
JAYLA WATKINS MD
Obstetrics & Gynecology
4860 Y ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-6978
JONATHAN BINDI MD
General Acute Care Hospital
4860 Y ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-6602
REGENTS OF THE UNIV OF CA
Obstetrics & Gynecology (Maternal & Fetal Medicine)
4860 Y ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-6930
DR. SANDHYA VENUGOPAL M.D.
Internal Medicine (Cardiovascular Disease)
4860 Y ST, SUITE 2820
SACRAMENTO, CA 95817
Sacramento County (916) 734-3764

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 Alexandra Duffy's NPI number?

The NPI number for Alexandra Duffy is 1316212814. It was assigned to this individual provider in the NPPES registry on March 15, 2012.

Where is Alexandra Duffy located?

Alexandra Duffy practices at 4860 Y St, Sacramento, CA 95817. The listed phone number is (916) 703-5078.

What is Alexandra Duffy's specialty?

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

Is Alexandra Duffy enrolled in Medicare?

Yes. Alexandra Duffy 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.

Which organization bills Medicare for Alexandra Duffy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Duffy reassigns Medicare benefits to Regents Of The Univ Of Ca (Sacramento, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexandra Duffy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexandra Duffy was last updated on March 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.