Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HASSAAN A ZIA MD
NPI 1669887519
Internal Medicine - Gastroenterology in Oklahoma City, OK

Q: What is Hassaan Zia's NPI number?

The NPI number for Hassaan Zia is 1669887519. It was assigned to this individual provider in the NPPES registry on June 29, 2014.

Q: What is Hassaan Zia'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 Hassaan Zia 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 24 days 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, 2014PECOS EnrolledAccepts Medicare Assignment

3435 NW 56TH ST STE 101, OKLAHOMA CITY, OK 73112(405) 633-9101(405) 633-9104 Get Directions Write a Review

NPPES record last updated: August 26, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Aug 26, 2026, Aug 1, 2024, Sep 20, 2021 and 1 more (4 updates tracked since 2020).

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About Hassaan A Zia Md NPPES

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

HASSAAN A ZIA MD (NPI 1669887519) is an individual gastroenterology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (30685) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with St Josephs Community Hospital West Bend, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1669887519

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameHASSAAN A ZIACredential: MD

Location Address3435 NW 56TH ST STE 101Oklahoma City, OK 73112-4495

Mailing Address3001 Quail Springs Pkwy Fl 5Oklahoma City, OK 73134-2640 · (405) 633-9101 · Fax (405) 633-9104

Phone(405) 633-9101

Fax(405) 633-9104

Sole ProprietorNo

Medical School CMSOtherGraduated 2012

Enumeration DateJune 29, 2014

Last NPPES UpdateAugust 26, 20264 updates tracked since enumeration

NPPES CertifiedAugust 26, 2026

✔ NPI 1669887519 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 · 30685

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.

3435 NW 56TH ST STE 101, Oklahoma City, OK 73112

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Other Identifiers 1

Medicaid100278079WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HMO Louisiana and more.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

Hassaan A Zia 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 ID7517398498

PECOS Enrollment IDI20240618000588

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 12

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.

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.

68 services68 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.

47 services47 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.

42 services42 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.

20 services19 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.

15 services14 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.

14 services14 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.

14 services14 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

13 services12 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

13 services11 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

13 services13 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.

11 services11 patients

Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43242

This procedure involves using an ultrasound to guide a needle to specific areas in the esophagus, stomach, or upper small bowel. A flexible endoscope is used to reach these areas. The needle collects a small sample for testing.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

St Josephs Community Hospital West Bend

Acute Care Hospitals · West Bend, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520063

Location3200 Pleasant Valley RoadWest Bend, WI 53095 · Washington County

Emergency services Birthing friendly

Community Memorial Hospital

Acute Care Hospitals · Menomonee Falls, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520103

LocationW180 N8085 Town Hall RdMenomonee Falls, WI 53051 · Waukesha County

Emergency services

Froedtert Memorial Lutheran Hospital

Acute Care Hospitals · Milwaukee, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520177

Location9200 W Wisconsin AveMilwaukee, WI 53226 · Milwaukee County

Emergency services Birthing friendly

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.

Other Providers at the Same Location NPPES 6

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

MRS. YVETTE MARYETTA PHILLIPS CNP

Nurse Practitioner (Acute Care)