STEVEN PATRICK THOMA M.D.
NPI 1598021131
Urology in Ames, IA

Q: What is Steven Thoma's NPI number?

The NPI number for Steven Thoma is 1598021131. It was assigned to this individual provider in the NPPES registry on April 9, 2012.

Q: What is Steven Thoma's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Steven Thoma was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since April 09, 2012PECOS EnrolledAccepts Medicare Assignment

1215 DUFF AVE, AMES, IA 50010(515) 239-4490(515) 239-4771 Get Directions Write a Review

NPPES record last updated: March 2, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 2, 2026, Jul 30, 2020, Mar 17, 2018 (3 updates tracked since 2018).

On this page

About Steven Patrick Thoma M.d. NPPES

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

STEVEN PATRICK THOMA M.D. (NPI 1598021131) is an individual urology provider in Ames, Iowa, licensed in Iowa (44576) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Mary Greeley Medical Center, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2012).

NPPES Registry Identity

NPI1598021131

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameSTEVEN PATRICK THOMACredential: M.D.

Location Address1215 DUFF AVEAmes, IA 50010

Mailing Address1215 Duff AveAmes, IA 50010-5469 · (515) 239-4400

Phone(515) 239-4490

Fax(515) 239-4771

Sole ProprietorYes

Medical School CMSLouisiana State University School Of Medicine In ShreveportGraduated 2012

Enumeration DateApril 9, 2012

Last NPPES UpdateMarch 2, 20263 updates tracked since enumeration

NPPES CertifiedMarch 2, 2026

✔ NPI 1598021131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in IA · 44576

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

1215 DUFF AVE, Ames, IA 50010

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Aspirus Health Plan, HealthPartners, Oscar Health 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

Steven Patrick Thoma 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 ID4587969415

PECOS Enrollment IDI20170915001958, I20180827002782, I20251031003318

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 Reassignments

Medicare enrollment records show Steven Thoma reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mcfarland Clinic PC

Same address

Multi-Specialty

1215 DUFF AVENUE
Ames, IA 50010

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

NPI 1639135643 (515) 239-4400

North Iowa Mercy Clinics

63 mi

Family Medicine

203 S 2ND ST
Sheffield, IA 50475

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

NPI 1972513026 (641) 892-4495

Mason City Clinic PC

80 mi

Otolaryngology

250 S CRESCENT DR
Mason City, IA 50401

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

NPI 1043254055 (800) 622-1411

Ascension Medical Group-Fox Valley Wisconsin, Inc

300 mi

Multi-Specialty

101 MAIN ST
Neenah, WI 54956

Reassigned Medicare billing, Wisconsin enrollment
444 clinicians in this Medicare group

NPI 1730126392 (920) 727-4200

St. Luke's Hospital Of Duluth

329 mi

Clinic/Center

707 HIGHWAY 33 S STE 19
Cloquet, MN 55720

Reassigned Medicare billing, Minnesota enrollment
513 clinicians in this Medicare group

NPI 1528937463 (218) 879-4641

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 18

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.

320 services216 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.

288 services222 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

142 services106 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

114 services95 patients

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

95 services72 patients

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

84 services59 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.

78 services78 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

55 services55 patients

Exam with injections of chemical for destruction of bladder using an endoscope 52287

This procedure involves the use of a thin, flexible tube with a light (endoscope) for internal examination. A chemical is then injected to help eliminate specific issues in the bladder. It's a standard and safe process.

51 services37 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

38 services38 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

38 services38 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

35 services35 patients

Insertion of stent in ureter using an endoscope 52332

This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.

29 services23 patients

Removal of prostate gland using an electrocautery knife through urethra with control of bleeding using an endoscope 52601

This procedure involves the careful removal of a small gland located in the lower body using a special heated knife, inserted through a natural body passage. An endoscope, a thin tube with a light and camera, helps to manage any bleeding. The aim is to alleviate discomfort and improve overall health.

20 services20 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

20 services20 patients

Complicated insertion of bladder tube 51703

This procedure involves placing a tube into your bladder to help with urine flow. It may be needed if you have trouble urinating naturally. The process requires specialized skill due to certain complexities but is done with utmost care for your comfort.

19 services15 patients

Crushing of stone of ureter with insertion of stent using an endoscope 52356

This procedure involves using a thin, flexible tube (endoscope) to locate and break down kidney stones in the ureter. After this, a small tube (stent) is inserted to help maintain an open pathway for urine to flow.

19 services12 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

17 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Mary Greeley Medical Center

Acute Care Hospitals · Ames, IA

4/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number160030

Location1111 Duff AvenueAmes, IA 50010 · Story County

Emergency services Birthing friendly

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

Iowa Specialty Hospital - Belmond

Critical Access Hospitals · Belmond, IA

OwnershipGovernment - Local

CMS Certification Number161301

Location403 First Street SEBelmond, IA 50421 · Wright County

Emergency services

Iowa Specialty Hospital - Clarion

Critical Access Hospitals · Clarion, IA

OwnershipGovernment - Local

CMS Certification Number161302

Location1316 South Main StreetClarion, IA 50525 · Wright County

Emergency services Birthing friendly

St Lukes Hospital

Acute Care Hospitals · Duluth, MN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240047

Location915 East 1st StreetDuluth, MN 55805 · St. Louis County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50010 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

$66.36 typical visit price

range $16.91 – $131.98

Typical copayment $16.59 (range $4.22 – $32.99)

Most-billed visit code 99213

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

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

32%367 patients2/55-star benchmark: 85%

Documentation of Current Medications in the Medical Record

Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.

78%1,544 patients2/55-star benchmark: 100%

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

91%677 patients3/55-star benchmark: 99%

Falls: Screening for Future Fall Risk

Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period

79%353 patients4/55-star benchmark: 99%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

75%756 patients1/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

8%827 patients1/55-star benchmark: 97%

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

67%353 patients3/55-star benchmark: 90%

Preventive Care and Screening: Influenza Immunization

Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization

85%259 patients4/55-star benchmark: 88%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user

Patients screenedForUse: 84% · 414 patients

Patients tobacco: 82% · 414 patients

77%44 patients4/55-star benchmark: 98%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

91%827 patients4/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

4%827 patients1/55-star benchmark: 89%

Use of High-Risk Medications in the Elderly

Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.

Lower rates are better for this measure.

Patients 2+: 1% · 353 patients

0%353 patients5/55-star benchmark: 100%

View, Download, or Transmit (VDT)

At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.

2%827 patients

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.

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

2 suppliers15 claims1,650 services$1.57 avg. paid by Medicare

Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352

DME-Orthotic Devices · category DF008N

2 suppliers33 claims3,570 services$6.12 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.

KARL HAMOUCHE

Radiology (Diagnostic Radiology)

1215 DUFF AVE
AMES, IA 50010

Story County (515) 239-4456

MARK R. MORRIS PA-C

Physician Assistant (Medical)

1215 DUFF AVE, MCFARLAND CLINIC, PC
AMES, IA 50010

Story County (515) 239-4496

NICHOLAS LELAND SKIBBA PHARMD

Pharmacist (Ambulatory Care)

1215 DUFF AVE
AMES, IA 50010

Story County (515) 239-4400

TROY MICHAEL MCDONOUGH M.S.P.T.

Physical Therapist

1215 DUFF AVE
AMES, IA 50010

Story County (515) 956-4095

BRIAN O'TOOL

Physical Therapist

1215 DUFF AVE
AMES, IA 50010

Story County (515) 956-4095

MATIAS ALBERTO GERSTNER MD

Internal Medicine

1215 DUFF AVE
AMES, IA 50010

Story County (515) 239-4431

DR. JUSTIN WADE RASH PHARMD

Pharmacist

1215 DUFF AVE
AMES, IA 50010

Story County (515) 232-7315

NATALIE NELSON

Physician Assistant

1215 DUFF AVE
AMES, IA 50010

Story County (515) 239-4475

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 Steven Thoma's NPI number?

The NPI number for Steven Thoma is 1598021131. It was assigned to this individual provider in the NPPES registry on April 9, 2012.

Where is Steven Thoma located?

Steven Thoma practices at 1215 Duff Ave, Ames, IA 50010. The listed phone number is (515) 239-4490.

What is Steven Thoma's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Steven Thoma enrolled in Medicare?

Yes. Steven Thoma 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 organizations bill Medicare for Steven Thoma's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Steven Thoma reassigns Medicare benefits to 5 organizations: Mcfarland Clinic PC (Ames, IA), North Iowa Mercy Clinics (Sheffield, IA), Mason City Clinic PC (Mason City, IA), Ascension Medical Group-Fox Valley Wisconsin, Inc (Neenah, WI) and St. Luke's Hospital Of Duluth (Cloquet, MN). Each 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 Steven Thoma's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Steven Thoma accept?

Health plans from Aspirus Health Plan, HealthPartners, Oscar Health, Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Steven Thoma 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 Steven Thoma affiliated with any hospitals?

According to CMS data, Steven Thoma is affiliated with Mary Greeley Medical Center, Mercyone North Iowa Medical Center, Iowa Specialty Hospital - Belmond, Iowa Specialty Hospital - Clarion and St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Steven Thoma was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.