DR. SHOWRI MADAN MANOHAR KARNAM MBBS
NPI 1447458401
Internal Medicine - Interventional Cardiology in Parkersburg, WV

Q: What is Showri Karnam's NPI number?

The NPI number for Showri Karnam is 1447458401. It was assigned to this individual provider in the NPPES registry on July 10, 2007.

Q: What is Showri Karnam'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 Showri Karnam was last updated on June 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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 July 10, 2007PECOS EnrolledAccepts Medicare Assignment

94.1/100

CMS Quality Rating

600 18TH ST STE 512, PARKERSBURG, WV 26101(304) 424-4574 Get Directions Write a Review

NPPES record last updated: June 23, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Showri Madan Manohar Karnam Mbbs NPPES

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

DR. SHOWRI MADAN MANOHAR KARNAM MBBS (NPI 1447458401) is an individual interventional cardiology provider in Parkersburg, West Virginia, licensed in West Virginia (26467) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Marietta Memorial Hospital, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1447458401

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. SHOWRI MADAN MANOHAR KARNAMCredential: MBBS

Location Address600 18TH ST STE 512Parkersburg, WV 26101-3236

Mailing Address600 18th St Ste 512, Apt #1706Parkersburg, WV 26101-3236 · (304) 424-4574

Phone(304) 424-4574

Sole ProprietorNo

Medical School CMSOtherGraduated 2005

Enumeration DateJuly 10, 2007

Last NPPES UpdateJune 23, 2016

✔ NPI 1447458401 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in WV · 26467

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.

600 18TH ST STE 512, Parkersburg, WV 26101

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, Highmark Blue Cross Blue Shield West Virginia, Oscar Health.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

Dr. Showri Madan Manohar Karnam Mbbs 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 ID8527256007

PECOS Enrollment IDI20151018000012

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 Showri Karnam reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Camden-Clark Physician Corporation

0.8 mi

Surgery

604 ANN ST
Parkersburg, WV 26101

Reassigned Medicare billing, West Virginia enrollment
461 clinicians in this Medicare group

NPI 1710125430 (304) 424-4593

Community Health Association

25 mi

Physical Therapy

511 WASHINGTON ST
Ravenswood, WV 26164

Reassigned Medicare billing, West Virginia enrollment
Also billed through NPI 1235753286 (West Virginia)
127 clinicians in this Medicare group

NPI 1124369780 (304) 273-5648

Bon Secours-St. Mary's Hospital Of Richmond, Inc.

239 mi

Primary Care

12320 W BROAD ST STE 204
Richmond, VA 23233

Reassigned Medicare billing, Virginia enrollment
Medicare enrollment name: Bon Secours St Marys Hospital Of Richmond LLC
164 clinicians in this Medicare group

NPI 1124532239 (804) 612-2980

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 33

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

268 services199 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

191 services129 patients

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.

184 services184 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.

149 services131 patients

Anticoagulant management of patient taking warfarin 93793

Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.

145 services72 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.

135 services134 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.

135 services134 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.

112 services108 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.

102 services58 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

98 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.

94 services94 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.

85 services80 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.

82 services50 patients

Ultrasound of heart 93307

An ultrasound of the heart, also known as an echocardiogram, is a non-invasive procedure that uses sound waves to create images of your heart. This test allows your doctor to monitor how your heart and its valves are functioning. It's a safe, painless process that can help diagnose heart conditions.

75 services75 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.

72 services72 patients

Heart rhythm recording continous external ekg over more than 48 hours up to 7 days 93242

This procedure involves wearing a device, an external EKG, for up to 7 days to continuously monitor your heart rhythm. It helps detect irregularities that may not occur during a standard EKG. The device is non-invasive and safe.

63 services63 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

60 services60 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.

48 services48 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.

45 services45 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.

39 services37 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.

33 services30 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.

33 services30 patients

Physician review, interpretation, and patient management of home inr testing for patient with either mechanical heart valve(s), chronic atrial fibrillation, or venous thromboembolism who meets medicare coverage criteria; testing not occurring more frequent G0250

This service involves your doctor evaluating your home INR (a blood clotting test) results. It's for patients with a mechanical heart valve, chronic atrial fibrillation, or venous thromboembolism who meet specific criteria. It helps manage your treatment, but tests aren't conducted frequently.

32 services25 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.

31 services27 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.

30 services29 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

27 services27 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

22 services19 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

20 services20 patients

Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes 99451

This service involves a consulting physician assessing your health condition via a phone or internet interaction. The doctor will spend at least 5 minutes discussing your health concerns. Afterwards, a written report summarizing the findings and recommendations will be provided for your reference.

16 services16 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

15 services14 patients

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

13 services13 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

This procedure involves placing a small tube into your coronary artery. It helps to identify any blockages or issues within the artery. A radiologist, a doctor specialized in medical imaging, will review the results to ensure accurate diagnosis.

12 services12 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

12 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Marietta Memorial Hospital

Acute Care Hospitals · Marietta, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number360147

Location401 Matthew StreetMarietta, OH 45750 · Washington County

Emergency services Birthing friendly

Bon Secours St Marys Hospital

Acute Care Hospitals · Richmond, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490059

Location5801 Bremo RdRichmond, VA 23226 · Richmond City County

Emergency services Birthing friendly

Bon Secours St Francis Medical Center

Acute Care Hospitals · Midlothian, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490136

Location13710 St Francis BoulevardMidlothian, VA 23114 · Chesterfield County

Emergency services Birthing friendly

Camden Clark Medical Center

Acute Care Hospitals · Parkersburg, WV

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number510058

Location800 Garfield AveParkersburg, WV 26101 · Wood County

Emergency services Birthing friendly

Jackson General Hospital

Critical Access Hospitals · Ripley, WV

OwnershipVoluntary non-profit - Private

CMS Certification Number511320

Location122 Pinnell StRipley, WV 25271 · Jackson County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 26101 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

$124.46 typical visit price

range $53.20 – $164.59

Typical copayment $31.11 (range $13.30 – $41.14)

Most-billed visit code 99204

Established Patient

$94.81 typical visit price

range $16.47 – $133.29

Typical copayment $23.70 (range $4.11 – $33.32)

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.

94.1/100

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

Scored through an Alternative Payment Model

Quality

78.46

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES

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

TAMMY SUE BURTON NP-BC

Nurse Practitioner

600 18TH ST STE 512
PARKERSBURG, WV 26101

Wood County (304) 424-4574

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 Showri Karnam's NPI number?

The NPI number for Showri Karnam is 1447458401. It was assigned to this individual provider in the NPPES registry on July 10, 2007.

Where is Showri Karnam located?

Showri Karnam practices at 600 18th St Ste 512, Parkersburg, WV 26101. The listed phone number is (304) 424-4574.

What is Showri Karnam's specialty?

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

Is Showri Karnam enrolled in Medicare?

Yes. Showri Karnam 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 Showri Karnam's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Showri Karnam reassigns Medicare benefits to 3 organizations: Camden-Clark Physician Corporation (Parkersburg, WV), Community Health Association (Ravenswood, WV) and Bon Secours-St. Mary's Hospital Of Richmond, Inc. (Richmond, VA). 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 Showri Karnam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Showri Karnam accept?

Health plans from CareSource, Highmark Blue Cross Blue Shield West Virginia and Oscar Health list Showri Karnam 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 Showri Karnam affiliated with any hospitals?

According to CMS data, Showri Karnam is affiliated with Marietta Memorial Hospital, Bon Secours St Marys Hospital, Bon Secours St Francis Medical Center, Camden Clark Medical Center and Jackson General Hospital.

When was this NPI record last updated?

The NPPES record for Showri Karnam was last updated on June 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.