SUMATHY NAGRAJ IYENGAR M.D.,
NPI 1013173723
Hospitalist in Mason City, IA

Active since August 01, 2008PECOS EnrolledAccepts Medicare Assignment
1000 4TH ST SW, MERCY MEDICAL CENTER-HOSPITALIST DEPT, MASON CITY, IA 50401(641) 428-7000 Get Directions Write a Review

NPPES record last updated: August 3, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Sumathy Nagraj Iyengar M.d., NPPES

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

SUMATHY NAGRAJ IYENGAR M.D., (NPI 1013173723) is an individual hospitalist provider in Mason City, Iowa, licensed in Iowa (39427) and active in the NPI registry since August 2008. She is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1013173723
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameSUMATHY NAGRAJ IYENGARCredential: M.D.,
Location Address1000 4TH ST SW, MERCY MEDICAL CENTER-HOSPITALIST DEPTMason City, IA 50401-2800
Mailing Address1000 4th St Sw, Mercy Medical Center - Hospitalist DeptMason City, IA 50401-2800 · (641) 428-7000
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateAugust 1, 2008
Last NPPES UpdateAugust 3, 2020
NPPES CertifiedAugust 3, 2020
NPI 1013173723 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in IA · 39427
Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 39427 (IA)
1000 4TH ST SW, Mason City, IA 50401

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

Sumathy Nagraj Iyengar 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 ID4981873569
PECOS Enrollment IDI20110817000030
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 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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
610 services250 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.
374 services172 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
223 services212 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
169 services164 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.
25 services24 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
18 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Mercyone North Iowa Medical Center

Acute Care Hospitals · Mason City, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160064
Location1000 Fourth Street SWMason City, IA 50401 · Cerro Gordo County
Emergency services Birthing friendly

Franklin General Hospital

Critical Access Hospitals · Hampton, IA
OwnershipGovernment - Local
CMS Certification Number161308
Location1720 Central Avenue EastHampton, IA 50441 · Franklin County
Emergency services

Mitchell County Regional Health

Critical Access Hospitals · Osage, IA
OwnershipGovernment - Local
CMS Certification Number161323
Location616 North Eighth StreetOsage, IA 50461 · Mitchell County
Emergency services

Mercy Medical Center-New Hampton

Critical Access Hospitals · New Hampton, IA
OwnershipVoluntary non-profit - Church
CMS Certification Number161331
Location308 North Maple AvenueNew Hampton, IA 50659 · Chickasaw County
Emergency services

Kossuth Regional Health Center

Critical Access Hospitals · Algona, IA
1/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number161353
Location1515 South Phillips StreetAlgona, IA 50511 · Kossuth County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50401 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.

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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
94%248 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 2

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

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers22 claims22 services$112.94 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers16 claims16 services$38.30 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.

Social Worker (Clinical)
1000 4TH ST SW, SUITE BS
MASON CITY, IA 50401
Internal Medicine
1000 4TH ST SW
MASON CITY, IA 50401
Emergency Medicine
1000 4TH ST SW
MASON CITY, IA 50401
Nurse Practitioner (Family)
1000 4TH ST SW
MASON CITY, IA 50401
Nurse Anesthetist, Certified Registered
1000 4TH ST SW
MASON CITY, IA 50401
Hospitalist
1000 4TH ST SW, SUITE HOSP
MASON CITY, IA 50401
Nurse Practitioner
1000 4TH ST SW
MASON CITY, IA 50401
Hospitalist
1000 4TH ST SW
MASON CITY, IA 50401

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 Sumathy Iyengar's NPI number?

The NPI number for Sumathy Iyengar is 1013173723. It was assigned to this individual provider in the NPPES registry on August 1, 2008.

Where is Sumathy Iyengar located?

Sumathy Iyengar practices at 1000 4th St SW Mercy Medical Center-Hospitalist Dept, Mason City, IA 50401. The listed phone number is (641) 428-7000.

What is Sumathy Iyengar's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Sumathy Iyengar enrolled in Medicare?

Yes. Sumathy Iyengar 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 Sumathy Iyengar accept?

Health plans from Oscar Insurance Company list Sumathy Iyengar 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 Sumathy Iyengar affiliated with any hospitals?

According to CMS data, Sumathy Iyengar is affiliated with Mercyone North Iowa Medical Center, Franklin General Hospital, Mitchell County Regional Health, Mercy Medical Center-New Hampton and Kossuth Regional Health Center.

When was this NPI record last updated?

The NPPES record for Sumathy Iyengar was last updated on August 3, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.