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WALTER K SOSEY MD
NPI 1942276555
Internal Medicine in Lk Havasu Cty, AZ

Active since February 23, 2006PECOS Enrolled
25.11/100
CMS Quality Rating
1830 MESQUITE AVE #A, LK HAVASU CTY, AZ 86403(928) 855-8071(928) 855-6869 Get Directions Write a Review

NPPES record last updated: November 20, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Walter K Sosey Md NPPES

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

WALTER K SOSEY MD (NPI 1942276555) is an individual internal medicine provider in Lk Havasu Cty, Arizona, licensed in Arizona (7826) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942276555
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWALTER K SOSEYCredential: MD
Location Address1830 MESQUITE AVE #ALk Havasu Cty, AZ 86403-5885
Mailing Address1830 Mesquite Ave #aLk Havasu Cty, AZ 86403-5885 · (928) 855-8071 · Fax (928) 855-6869
Phone(928) 855-8071
Fax(928) 855-6869
Sole ProprietorYes
Enumeration DateFebruary 23, 2006
Last NPPES UpdateNovember 20, 2007
✔ NPI 1942276555 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 7826
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.

Other Identifiers 2

Medicare PINZ0000BGFFCAZ
Medicare UPIND00352AZ

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Walter K Sosey Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Walter Sosey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lakeside Heart And Vascular Center PLLC
Interventional Cardiology
1741 MESQUITE AVE, SUITE A100
Lake Havasu City, AZ 86403
  • Reassigned Medicare billing, Arizona enrollment
  • 36 clinicians in this Medicare group
NPI 1801194352 (928) 453-2727

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 11

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.
1,057 services496 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
109 services104 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.
97 services86 patients
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.
85 services71 patients
Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous G0328
A fecal occult blood test is a screening tool for colorectal cancer. It checks for tiny amounts of blood in your stool that can't be seen with the naked eye. The immunoassay method can test 1-3 samples at once. This helps detect cancer early, when treatment is most effective.
40 services40 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 86403 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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.

25.11/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality15
Improvement Activities0
Cost63.7

Referred Medical Equipment & Supplies CMS DME claims 9

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

Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
2 suppliers16 claims16 services$89.80 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers15 claims42 services$33.82 avg. paid by Medicare
Tubing used with positive airway pressure device A7037
DME-Other DME · category DE001N
2 suppliers12 claims12 services$14.69 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
2 suppliers19 claims112 services$2.40 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier15 claims15 services$14.10 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier17 claims18 services$34.03 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Walter Sosey's NPI number?

The NPI number for Walter Sosey is 1942276555. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Where is Walter Sosey located?

Walter Sosey practices at 1830 Mesquite Ave #a, Lk Havasu Cty, AZ 86403. The listed phone number is (928) 855-8071.

What is Walter Sosey's specialty?

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

Is Walter Sosey enrolled in Medicare?

Yes. Walter Sosey is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Walter Sosey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Walter Sosey reassigns Medicare benefits to Lakeside Heart And Vascular Center PLLC (Lake Havasu City, AZ). 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 Walter Sosey'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 Walter Sosey was last updated on November 20, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.