SUMIT A WALIA MD
NPI 1295963247
Internal Medicine - Gastroenterology in Oklahoma City, OK

Q: What is Sumit Walia's NPI number?

The NPI number for Sumit Walia is 1295963247. It was assigned to this individual provider in the NPPES registry on June 29, 2009. The provider is also known as Sumit Ahluwalia MD.

Q: What is Sumit Walia's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Sumit Walia was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 June 29, 2009PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

5701 N PORTLAND AVE STE 101, OKLAHOMA CITY, OK 73112(405) 727-3065(405) 552-8845 Get Directions Write a Review

NPPES record last updated: August 26, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 26, 2026, May 16, 2018 (2 updates tracked since 2018).

On this page

About Sumit A Walia Md NPPES

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

SUMIT A WALIA MD (NPI 1295963247) is an individual gastroenterology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (29236) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Integris Bass Baptist Health Center, and is a graduate of University Of Oklahoma College Of Medicine (2009).

NPPES Registry Identity

NPI1295963247

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameSUMIT A WALIACredential: MD

Location Address5701 N PORTLAND AVE STE 101Oklahoma City, OK 73112-1670

Mailing Address3001 Quail Springs Pkwy Fl 5Oklahoma City, OK 73134-2640 · (405) 727-3065 · Fax (405) 552-8845

Phone(405) 727-3065

Fax(405) 552-8845

Sole ProprietorNo

Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2009

Enumeration DateJune 29, 2009

Last NPPES UpdateAugust 26, 20262 updates tracked since enumeration

NPPES CertifiedAugust 26, 2026

✔ NPI 1295963247 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in OK · 29236

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

5701 N PORTLAND AVE STE 101, Oklahoma City, OK 73112

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Other Names 1

Former Name (1)Sumit Ahluwalia Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health, Oscar Insurance Company.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

Sumit A Walia Md 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 ID2567782642

PECOS Enrollment IDI20150514000422

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 Sumit Walia reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Digestive Disease Specialists Inc

2.1 mi

Gastroenterology

5015 N PENNSYLVANIA AVE, STE. 303
Oklahoma City, OK 73112

Reassigned Medicare billing, Oklahoma enrollment
40 clinicians in this Medicare group

NPI 1366489213 (405) 767-6630

Integris Ddsi Endoscopy Centers LLC

5.6 mi

Ambulatory Surgical

10029 N OKLAHOMA AVE STE 100
Oklahoma City, OK 73114

Reassigned Medicare billing, Oklahoma enrollment
Also billed through NPI 1760074207 (Oklahoma)
18 clinicians in this Medicare group

NPI 1497347934 (405) 702-1300

Integris Ambulatory Care Corporation

6.0 mi

Family Medicine

3001 QUAIL SPRINGS PKWY
Oklahoma City, OK 73134

Reassigned Medicare billing, Oklahoma enrollment
1,058 clinicians in this Medicare group

NPI 1750333936 (405) 951-2298

Integris Bass Baptist Health Center

44 mi

Rural Health

300 N CHEROKEE ST
Hennessey, OK 73742

Reassigned Medicare billing, Oklahoma enrollment
25 clinicians in this Medicare group

NPI 1659971398 (405) 853-7171

Comanche County Healthcare Corp

64 mi

Family Medicine

102 N BROADWAY
Carnegie, OK 73015

Reassigned Medicare billing, Oklahoma enrollment
160 clinicians in this Medicare group

NPI 1346269925 (580) 654-2500

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 13

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.

126 services111 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

84 services83 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.

77 services77 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

75 services75 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

63 services63 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

47 services47 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.

39 services39 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

27 services27 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.

22 services21 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.

20 services20 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

18 services17 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

14 services14 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

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.

Integris Bass Baptist Health Center

Acute Care Hospitals · Enid, OK

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370016

Location600 South MonroeEnid, OK 73701 · Garfield County

Emergency services Birthing friendly

Integris Baptist Medical Center, Inc

Acute Care Hospitals · Oklahoma City, OK

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370028

Location3300 Northwest ExpresswayOklahoma City, OK 73112 · Oklahoma County

Emergency services Birthing friendly

Integris Canadian Valley Hospital

Acute Care Hospitals · Yukon, OK

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370211

Location1201 Health Center ParkwayYukon, OK 73099 · Canadian County

Emergency services Birthing friendly

Oklahoma Heart Hospital, LLC

Acute Care Hospitals · Oklahoma City, OK

4/5 CMS rating

OwnershipPhysician

CMS Certification Number370215

Location4050 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73112 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

$123.06 typical visit price

range $53.00 – $162.61

Typical copayment $30.76 (range $13.25 – $40.65)

Most-billed visit code 99204

Established Patient

$94.27 typical visit price

range $16.68 – $132.40

Typical copayment $23.56 (range $4.17 – $33.10)

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.

75/100

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

Individually scored

Other Providers at the Same Location NPPES

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

DR. SALMAN NUSRAT M.D.

Internal Medicine (Gastroenterology)

5701 N PORTLAND AVE STE 101
OKLAHOMA CITY, OK 73112

Oklahoma County (405) 727-3065

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 Sumit Walia's NPI number?

The NPI number for Sumit Walia is 1295963247. It was assigned to this individual provider in the NPPES registry on June 29, 2009. The provider is also known as Sumit Ahluwalia MD.

Where is Sumit Walia located?

Sumit Walia practices at 5701 N Portland Ave Ste 101, Oklahoma City, OK 73112. The listed phone number is (405) 727-3065.

What is Sumit Walia's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Sumit Walia enrolled in Medicare?

Yes. Sumit Walia 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 Sumit Walia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sumit Walia reassigns Medicare benefits to 5 organizations: Digestive Disease Specialists Inc (Oklahoma City, OK), Integris Ddsi Endoscopy Centers LLC (Oklahoma City, OK), Integris Ambulatory Care Corporation (Oklahoma City, OK), Integris Bass Baptist Health Center (Hennessey, OK) and Comanche County Healthcare Corp (Carnegie, OK). 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 Sumit Walia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sumit Walia accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Mending Health and Oscar Insurance Company list Sumit Walia 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 Sumit Walia affiliated with any hospitals?

According to CMS data, Sumit Walia is affiliated with Integris Bass Baptist Health Center, Integris Baptist Medical Center, Inc, Integris Canadian Valley Hospital and Oklahoma Heart Hospital, LLC.

When was this NPI record last updated?

The NPPES record for Sumit Walia was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.