THOO H TAN DO
NPI 1104857127
Obstetrics & Gynecology in Algona, IA

Active since July 06, 2006PECOS Enrolled
1515 S PHILLIPS ST, ALGONA, IA 50511(515) 295-2451 Get Directions Write a Review

NPPES record last updated: June 1, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 1, 2026, Apr 20, 2021, Jul 17, 2020 and 1 more (4 updates tracked since 2016).

About Thoo H Tan Do NPPES

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

THOO H TAN DO (NPI 1104857127) is an individual obstetrics & gynecology provider in Algona, Iowa, licensed in Iowa (02918) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and maintains a secondary practice location in Mason City.

NPPES Registry Identity

NPI1104857127
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameTHOO H TANCredential: DO
Location Address1515 S PHILLIPS STAlgona, IA 50511-3649
Mailing Address1010 4th St Sw Ste 220Mason City, IA 50401-2856 · (641) 428-5100 · Fax (641) 428-5115
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateJuly 6, 2006
Last NPPES UpdateJune 1, 20264 updates tracked since enumeration
NPPES CertifiedJune 1, 2026
NPI 1104857127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in IA · 02918
Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

1515 S PHILLIPS ST, Algona, IA 50511

Secondary Practice Location 1

Location 11010 4th St SW, SUITE 220Mason City, IA 50401-2857 · Phone (641) 428-5100 · Fax (641) 428-5115

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 (PECOS)

Thoo H Tan Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7911003470
PECOS Enrollment IDI20070501000178
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 5

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 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.
72 services46 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.
32 services32 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
23 services20 patients
Biopsy of lining of uterus 58100
A biopsy of the uterus lining is a medical procedure where a small sample of tissue is taken from the inner layer of your uterus. This is done to check for any abnormal cells or conditions. It's a common, quick process that helps in diagnosing various health issues.
12 services12 patients
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Hancock County Health System

Critical Access Hospitals · Britt, IA
OwnershipGovernment - Local
CMS Certification Number161307
Location532 1st St NWBritt, IA 50423 · Hancock 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

Hansen Family Hospital

Critical Access Hospitals · Iowa Falls, IA
OwnershipGovernment - Local
CMS Certification Number161380
Location920 South Oak StreetIowa Falls, IA 50126 · Hardin County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50511 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.

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.

Nurse Practitioner (Family)
1515 S PHILLIPS ST
ALGONA, IA 50511
Physician Assistant
1515 S PHILLIPS ST
ALGONA, IA 50511
Family Medicine
1515 S PHILLIPS ST
ALGONA, IA 50511
Student in an Organized Health Care Education/Training Program
1515 S PHILLIPS ST
ALGONA, IA 50511
Dietitian, Registered
1515 S PHILLIPS ST
ALGONA, IA 50511
Home Health
1515 S PHILLIPS ST
ALGONA, IA 50511
Physician Assistant
1515 S PHILLIPS ST
ALGONA, IA 50511
General Acute Care Hospital (Critical Access)
1515 S PHILLIPS ST
ALGONA, IA 50511

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 Thoo Tan's NPI number?

The NPI number for Thoo Tan is 1104857127. It was assigned to this individual provider in the NPPES registry on July 6, 2006.

Where is Thoo Tan located?

Thoo Tan practices at 1515 S Phillips St, Algona, IA 50511. The listed phone number is (515) 295-2451.

What is Thoo Tan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Thoo Tan enrolled in Medicare?

Yes. Thoo Tan is registered in the Medicare PECOS enrollment system.

What insurance does Thoo Tan accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Thoo Tan 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 Thoo Tan affiliated with any hospitals?

According to CMS data, Thoo Tan is affiliated with Mercyone North Iowa Medical Center, Hancock County Health System, Mercy Medical Center-New Hampton and Hansen Family Hospital.

When was this NPI record last updated?

The NPPES record for Thoo Tan was last updated on June 1, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.