DR. LING DAN TWOHIG DO
NPI 1750523684
Internal Medicine - Interventional Cardiology in Beloit, WI

Q: What is Ling Twohig's NPI number?

The NPI number for Ling Twohig is 1750523684. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Q: What is Ling Twohig's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Ling Twohig was last updated on September 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 March 24, 2009PECOS EnrolledAccepts Medicare Assignment

73.05/100

CMS Quality Rating

BELOIT MEMORIAL HOSPITAL, 1969 WEST HART RD, BELOIT, WI 53511(608) 364-5011(608) 364-5452 Get Directions Write a Review

NPPES record last updated: September 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 28, 2022, Mar 10, 2022 (2 updates tracked since 2022).

On this page

About Dr. Ling Dan Twohig Do NPPES

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

DR. LING DAN TWOHIG DO (NPI 1750523684) is an individual interventional cardiology provider in Beloit, Wisconsin, licensed in Wisconsin (77847) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS, is affiliated with Northwest Health - Porter, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1750523684

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. LING DAN TWOHIGCredential: DO

Location AddressBELOIT MEMORIAL HOSPITAL, 1969 WEST HART RDBeloit, WI 53511-2283

Mailing Address1969 West Hart RdBeloit, WI 53511-2283 · (608) 364-5689 · Fax (608) 364-4542

Phone(608) 364-5011

Fax(608) 364-5452

Sole ProprietorYes

Medical School CMSTouro Un College Of Osteopathic Medicine, VallejoGraduated 2008

Enumeration DateMarch 24, 2009

Last NPPES UpdateSeptember 30, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 30, 2025

✔ NPI 1750523684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

Licenses✔ Licensed in WI · 77847✔ Licensed in IN · 02006049A✔ Licensed in WI · 22007✔ Licensed in WI · 22007-875

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedGeneral PracticeTaxonomy 208D00000X · License OP 60100157 (WA)

BELOIT MEMORIAL HOSPITAL, Beloit, WI 53511

Open in Google Maps ↗

Secondary Practice Locations 3

Location 13400 Ministry PkwyWeston, WI 54476-5213 · Phone (715) 383-1000

Location 2201 Independence Dr., 14th MDG/SGQColumbus, MS 39710-0001 · Phone (662) 434-2205

Location 31818 N Meade StAppleton, WI 54911-3454 · Phone (920) 731-8900 · Fax (920) 738-5369

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource, MedMutual.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

Dr. Ling Dan Twohig Do 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 ID9133301898

PECOS Enrollment IDI20220316000326, I20220408000350, I20241211000444

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 15

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.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

150 services149 patients

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.

134 services98 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

82 services82 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

78 services78 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.

57 services57 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

36 services36 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

34 services34 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

32 services32 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

29 services29 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

27 services27 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.

24 services19 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

22 services22 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

17 services14 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

17 services15 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.

17 services16 patients

Hospital Affiliations CMS Care Compare 5

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

Northwest Health - Porter

Acute Care Hospitals · Valparaiso, IN

3/5 CMS rating

OwnershipProprietary

CMS Certification Number150035

Location85 East Us Hwy 6Valparaiso, IN 46383 · Porter County

Emergency services Birthing friendly

Bmh-Golden Triangle

Acute Care Hospitals · Columbus, MS

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number250100

Location2520 5th Street NColumbus, MS 39705 · Lowndes County

Emergency services Birthing friendly

St Mary's Medical Center

Acute Care Hospitals · Blue Springs, MO

4/5 CMS rating

OwnershipProprietary

CMS Certification Number260193

Location201 NW R D Mize RdBlue Springs, MO 64014 · Jackson County

Emergency services

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520037

Location611 St Joseph AveMarshfield, WI 54449 · Wood County

Emergency services Birthing friendly

Marshfield Medical Center - Weston

Acute Care Hospitals · Weston, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520202

Location3400 Ministry ParkwayWeston, WI 54476 · Marathon County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53511 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

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

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.

73.05/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

58.79

Promoting Interoperability

100

Improvement Activities

Cost

51.38

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARGARET M PEARSALL M.D.

Hospitalist

BELOIT MEMORIAL HOSPITAL, 1969 W. HART ROAD
BELOIT, WI 53511

Rock County (608) 363-5971

JENNIFER D. DOCHEE M.D.

Internal Medicine (Interventional Cardiology)

BELOIT MEMORIAL HOSPITAL, 1969 W. HART RD
BELOIT, WI 53511

Rock County (608) 364-5205

RUTH C. TAGGART NP

Nurse Practitioner

BELOIT MEMORIAL HOSPITAL, 1969 W. HART ROAD
BELOIT, WI 53511

Rock County (608) 363-5971

SHAWN DOUGLAS ANTLE M.D.

Hospitalist

BELOIT MEMORIAL HOSPITAL, 1969 W. HART ROAD
BELOIT, WI 53511

Rock County (608) 363-5971

RUTH CHRISTIANSEN N.P.

Nurse Practitioner

BELOIT MEMORIAL HOSPITAL, 1969 W. HART ROAD
BELOIT, WI 53511

Rock County (608) 363-5971

DR. EMILY C DEMPSEY NP

Nurse Practitioner

BELOIT MEMORIAL HOSPITAL, 1969 W HART ROAD
BELOIT, WI 53511

Rock County (608) 364-5205

DR. OMER SHARIF M.D.

Hospitalist

BELOIT MEMORIAL HOSPITAL, 1969 W. HART ROAD
BELOIT, WI 53511

Rock County (608) 363-5971

CHARLES L LAHAM MD

Internal Medicine (Cardiovascular Disease)

BELOIT MEMORIAL HOSPITAL, 1969 WEST HART RD
BELOIT, WI 53511

Rock County (608) 364-5011

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 Ling Twohig's NPI number?

The NPI number for Ling Twohig is 1750523684. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Where is Ling Twohig located?

Ling Twohig practices at Beloit Memorial Hospital 1969 West Hart Rd, Beloit, WI 53511. The listed phone number is (608) 364-5011.

What is Ling Twohig's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Ling Twohig enrolled in Medicare?

Yes. Ling Twohig 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 Ling Twohig accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource and MedMutual list Ling Twohig 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 Ling Twohig affiliated with any hospitals?

According to CMS data, Ling Twohig is affiliated with Northwest Health - Porter, Bmh-Golden Triangle, St Mary's Medical Center, Marshfield Medical Center and Marshfield Medical Center - Weston.

When was this NPI record last updated?

The NPPES record for Ling Twohig was last updated on September 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.