DR. LOSTY TATIANA TORRES POTTER M.D.
NPI 1619358603
Internal Medicine - Endocrinology, Diabetes & Metabolism in Sioux City, IA

Q: What is Losty Torres Potter's NPI number?

The NPI number for Losty Torres Potter is 1619358603. It was assigned to this individual provider in the NPPES registry on June 15, 2015.

Q: What is Losty Torres Potter's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Active since June 15, 2015PECOS EnrolledAccepts Medicare Assignment

801 5TH ST, SIOUX CITY, IA 51101(712) 279-2950(712) 279-2520 Get Directions Write a Review

NPPES record last updated: November 10, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 10, 2025, Apr 9, 2024, Oct 26, 2020 (3 updates tracked since 2020).

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About Dr. Losty Tatiana Torres Potter M.d. NPPES

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

DR. LOSTY TATIANA TORRES POTTER M.D. (NPI 1619358603) is an individual endocrinology, diabetes & metabolism provider in Sioux City, Iowa, licensed in Iowa (MD-47081) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with St Lukes Regional Medical Center, and maintains a secondary practice location in Bronx.

NPPES Registry Identity

NPI1619358603

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameDR. LOSTY TATIANA TORRES POTTERCredential: M.D.

Location Address801 5TH STSioux City, IA 51101-1326

Mailing Address801 5th StSioux City, IA 51101-1326 · (712) 279-2950 · Fax (712) 279-2520

Phone(712) 279-2950

Fax(712) 279-2520

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateJune 15, 2015

Last NPPES UpdateNovember 10, 20253 updates tracked since enumeration

NPPES CertifiedNovember 10, 2025

✔ NPI 1619358603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in IA · MD-47081

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

801 5TH ST, Sioux City, IA 51101

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Secondary Practice Location 1

Location 14422 3rd Ave, department of internal medicineBronx, NY 10457-2545 · Phone (718) 960-6202

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

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

Dr. Losty Tatiana Torres Potter 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 ID3476978131

PECOS Enrollment IDI20200729001524

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 Losty Torres Potter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Iowa Hospital Corporation

1.6 mi

Emergency Medical Services

2720 STONE PARK BLVD
Sioux City, IA 51104

Reassigned Medicare billing, Iowa enrollment
281 clinicians in this Medicare group

NPI 1215962550 (712) 279-3789

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 7

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.

258 services145 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.

139 services89 patients

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251

This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.

110 services38 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

81 services55 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.

44 services44 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

39 services38 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Lukes Regional Medical Center

Acute Care Hospitals · Sioux City, IA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160146

Location2720 Stone Park BoulevardSioux City, IA 51104 · Woodbury County

Emergency services Birthing friendly

Horn Memorial Hospital

Critical Access Hospitals · Ida Grove, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161354

Location701 E 2nd StIda Grove, IA 51445 · Ida County

Emergency services

Cherokee Regional Medical Center

Critical Access Hospitals · Cherokee, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161362

Location300 Sioux Valley DriveCherokee, IA 51012 · Cherokee County

Emergency services Birthing friendly

Floyd Valley Healthcare

Critical Access Hospitals · Le Mars, IA

OwnershipGovernment - Local

CMS Certification Number161368

Location714 Lincoln St NELe Mars, IA 51031 · Plymouth County

Emergency services Birthing friendly

Buena Vista Regional Medical Center

Critical Access Hospitals · Storm Lake, IA

4/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number161375

Location1525 West 5th StreetStorm Lake, IA 50588 · Buena Vista County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 51101 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

$122.23 typical visit price

range $52.96 – $161.40

Typical copayment $30.55 (range $13.24 – $40.35)

Most-billed visit code 99204

Established Patient

$94.05 typical visit price

range $16.91 – $131.98

Typical copayment $23.51 (range $4.22 – $32.99)

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 4

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

Supplies for maintenance of insulin infusion catheter, per week A4224

DME-Other DME · category DE017N

4 suppliers11 claims140 services$18.60 avg. paid by Medicare

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

4 suppliers11 claims22 services$6.63 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

6 suppliers420 claims420 services$188.69 avg. paid by Medicare

Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system K0554

DME-Other DME · category DE017N

3 suppliers13 claims13 services$164.87 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.

MS. KRISTI JO HANSEN P.A.

Physician Assistant

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2512

KIRSTEN MARIE NEDVED

Nurse Practitioner

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 294-7020

NICOLE MARIE KASSING

Physical Therapy Assistant

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 233-5129

MARK EDWARD DAVIS CNP

Nurse Practitioner

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2010

DR. BRETT C. BIEBER PHARM.D. (RPH)

Pharmacist

801 5TH ST, MERCY MEDICAL CENTER - MAIN PHARMACY
SIOUX CITY, IA 51101

Woodbury County (712) 279-5992

GINGER DAWN HAMILTON FNP

Nurse Practitioner

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2010

DEBORAH CARTER CRNA

Nurse Anesthetist, Certified Registered

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2505

DR. PETER JON ANDERSON M.D.

Internal Medicine

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2010

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 Losty Torres Potter's NPI number?

The NPI number for Losty Torres Potter is 1619358603. It was assigned to this individual provider in the NPPES registry on June 15, 2015.

Where is Losty Torres Potter located?

Losty Torres Potter practices at 801 5th St, Sioux City, IA 51101. The listed phone number is (712) 279-2950.

What is Losty Torres Potter's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Losty Torres Potter enrolled in Medicare?

Yes. Losty Torres Potter 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 Losty Torres Potter's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Losty Torres Potter reassigns Medicare benefits to Northwest Iowa Hospital Corporation (Sioux City, IA). 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 Losty Torres Potter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Losty Torres Potter accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Oscar Health and 2 other insurers list Losty Torres Potter 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.

Is Losty Torres Potter affiliated with any hospitals?

According to CMS data, Losty Torres Potter is affiliated with St Lukes Regional Medical Center, Horn Memorial Hospital, Cherokee Regional Medical Center, Floyd Valley Healthcare and Buena Vista Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Losty Torres Potter was last updated on November 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.