CHARLES A LONGO M.D.
NPI 1841266608
Internal Medicine - Endocrinology, Diabetes & Metabolism in Sioux Falls, SD

Q: What is Charles Longo's NPI number?

The NPI number for Charles Longo is 1841266608. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Q: What is Charles Longo's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Charles Longo was last updated on December 13, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since February 23, 2006PECOS EnrolledAccepts Medicare Assignment

1315 S. CLIFF AVE, STE 3000, SIOUX FALLS, SD 57105(605) 322-7600(605) 322-7601 Get Directions Write a Review

NPPES record last updated: December 13, 2013. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Charles A Longo M.d. NPPES

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

CHARLES A LONGO M.D. (NPI 1841266608) is an individual endocrinology, diabetes & metabolism provider in Sioux Falls, South Dakota, licensed in South Dakota (5192) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Spencer Municipal Hospital, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (1998).

NPPES Registry Identity

NPI1841266608

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameCHARLES A LONGOCredential: M.D.

Location Address1315 S. CLIFF AVE, STE 3000Sioux Falls, SD 57105-1061

Mailing Address2400 S Minnesota Ave, Ste 100Sioux Falls, SD 57105-3762 · (605) 322-7510 · Fax (605) 322-6475

Phone(605) 322-7600

Fax(605) 322-7601

Sole ProprietorNo

Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 1998

Enumeration DateFebruary 23, 2006

Last NPPES UpdateDecember 13, 2013

✔ NPI 1841266608 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 SD · 5192

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.

1315 S. CLIFF AVE, Sioux Falls, SD 57105

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Other Identifiers 20

Other1909119SD · Araz/ America's Ppo

Other240862SD · Midlands Choice

Medicare UPINH97039SD

Medicaid6004720SD

Medicare PINI12125IA

Medicare PINS41542SD

Other157L6LOMN · Blue Cross

Other3300147SD · Medica

Medicaid028917500MN

Medicaid46022474351NE

Other20762IA · Blue Cross

Other309991034635SD · Preferred One

Other5192SD · Dakotacare

OtherHP40616SD · Healthpartners

Other157L6LOMN · Cc Systems/ Blue Plus

Other34596SD · Sanford Health Plan

Other57105Y004SD · Wps Tricare

Other4995936SD · Blue Cross

OtherP00095104SD · Rr Medicare

Medicaid0574087IA

Accepted Insurance

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

Charles A Longo 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 ID6305744145

PECOS Enrollment IDI20031230000655

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 12

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.

145 services122 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.

112 services94 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

102 services94 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.

98 services71 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

67 services27 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

65 services59 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.

64 services25 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.

62 services59 patients

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

51 services46 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

46 services43 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.

17 services17 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.

15 services15 patients

Hospital Affiliations CMS Care Compare 5

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

Spencer Municipal Hospital

Acute Care Hospitals · Spencer, IA

5/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number160112

Location1200 1st Avenue EastSpencer, IA 51301 · Clay County

Emergency services Birthing friendly

Sioux Center Health

Critical Access Hospitals · Sioux Center, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161346

Location1101 9th Street SESioux Center, IA 51250 · Sioux County

Emergency services

Avera St Lukes

Acute Care Hospitals · Aberdeen, SD

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number430014

Location305 S State St Post Office Box 4450Aberdeen, SD 57401 · Brown County

Emergency services Birthing friendly

Avera Mckennan Hospital & University Health Center

Acute Care Hospitals · Sioux Falls, SD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number430016

Location1325 S Cliff AveSioux Falls, SD 57117 · Minnehaha County

Emergency services Birthing friendly

Avera Queen Of Peace

Critical Access Hospitals · Mitchell, SD

OwnershipVoluntary non-profit - Private

CMS Certification Number431340

Location525 N FosterMitchell, SD 57301 · Davison County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 57105 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

$126.78 typical visit price

range $55.52 – $167.23

Typical copayment $31.69 (range $13.88 – $41.80)

Most-billed visit code 99204

Established Patient

$97.88 typical visit price

range $18.08 – $137.08

Typical copayment $24.47 (range $4.52 – $34.27)

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 9

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

9 suppliers108 claims1,345 services$18.86 avg. paid by Medicare

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225

DME-Other DME · category DE017N

9 suppliers103 claims3,022 services$2.36 avg. paid by Medicare

Supply allowance for adjunctive continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service A4238

DME-Medical/Surgical Supplies · category DA000N

3 suppliers19 claims19 services$173.93 avg. paid by Medicare

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

DME-Other DME · category DE017N

35 suppliers169 claims456 services$5.80 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

7 suppliers17 claims21 services$0.91 avg. paid by Medicare

External ambulatory infusion pump, insulin E0784

DME-Other DME · category DE017N

5 suppliers80 claims80 services$310.58 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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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 Charles Longo's NPI number?

The NPI number for Charles Longo is 1841266608. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Where is Charles Longo located?

Charles Longo practices at 1315 S. Cliff Ave Ste 3000, Sioux Falls, SD 57105. The listed phone number is (605) 322-7600.

What is Charles Longo's specialty?

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

Is Charles Longo enrolled in Medicare?

Yes. Charles Longo 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 Charles Longo accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and Avera Health Plans and 1 other insurer list Charles Longo 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 Charles Longo affiliated with any hospitals?

According to CMS data, Charles Longo is affiliated with Spencer Municipal Hospital, Sioux Center Health, Avera St Lukes, Avera Mckennan Hospital & University Health Center and Avera Queen Of Peace.

When was this NPI record last updated?

The NPPES record for Charles Longo was last updated on December 13, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.