DR. ROCKFORD GLENN YAPP M.D., M.P.H.
NPI 1356327910
Internal Medicine - Gastroenterology in Downers Grove, IL

Q: What is Rockford Yapp's NPI number?

The NPI number for Rockford Yapp is 1356327910. It was assigned to this individual provider in the NPPES registry on December 15, 2005.

Q: What is Rockford Yapp'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 Rockford Yapp was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 December 15, 2005PECOS EnrolledAccepts Medicare Assignment

3825 HIGHLAND AVE, TOWER 2 - SUITE 302, DOWNERS GROVE, IL 60515(630) 434-9312(630) 434-9360 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Rockford Glenn Yapp M.d., M.p.h. NPPES

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

DR. ROCKFORD GLENN YAPP M.D., M.P.H. (NPI 1356327910) is an individual gastroenterology provider in Downers Grove, Illinois and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Adventist Hinsdale Hospital, and is a graduate of University Of Nebraska College Of Medicine (1984).

NPPES Registry Identity

NPI1356327910

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. ROCKFORD GLENN YAPPCredential: M.D., M.P.H.

Location Address3825 HIGHLAND AVE, TOWER 2 - SUITE 302Downers Grove, IL 60515-1552

Mailing Address3825 Highland Ave, Tower 2 - Suite 302Downers Grove, IL 60515-1552 · (630) 434-9312 · Fax (630) 434-9360

Phone(630) 434-9312

Fax(630) 434-9360

Sole ProprietorNo

Medical School CMSUniversity Of Nebraska College Of MedicineGraduated 1984

Enumeration DateDecember 15, 2005

Last NPPES UpdateJuly 8, 2007

✔ NPI 1356327910 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

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.

3825 HIGHLAND AVE, Downers Grove, IL 60515

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Other Identifiers 3

Medicare UPINE42819IL

Medicare ID-Type Unspecified467270IL

Medicaid036-72055IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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. Rockford Glenn Yapp M.d., M.p.h. 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 ID9830182344

PECOS Enrollment IDI20040409000100

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 17

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.

323 services230 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.

141 services132 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.

138 services98 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.

126 services61 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.

72 services72 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.

62 services57 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.

50 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.

49 services48 patients

Ultrasound scan of organ tissue for measuring elasticity 76981

An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.

46 services44 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.

31 services31 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.

26 services26 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

26 services14 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.

17 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.

13 services13 patients

Measurement of liver stiffness 91200

Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.

13 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.

13 services13 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 3

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

Adventist Hinsdale Hospital

Acute Care Hospitals · Hinsdale, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140122

Location120 North Oak StHinsdale, IL 60521 · Du Page County

Emergency services Birthing friendly

Edward Hospital

Acute Care Hospitals · Naperville, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140231

Location801 South WashingtonNaperville, IL 60540 · Du Page County

Emergency services Birthing friendly

Advocate Good Samaritan Hospital

Acute Care Hospitals · Downers Grove, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140288

Location3815 Highland AvenueDowners Grove, IL 60515 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60515 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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 20

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

PETER MICHAEL KERWIN MD

Internal Medicine (Interventional Cardiology)

3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515

Dupage County (630) 719-4799

BARRY SADEGI M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

3825 HIGHLAND AVE, 3B
DOWNERS GROVE, IL 60515

Dupage County (630) 434-9300

STEPHEN MICHAEL ROWLEY MD

Internal Medicine (Cardiovascular Disease)

3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515

Dupage County (630) 719-4799

DR. KOTESWARA RAO BATCHU M.D.

Legal Medicine

3825 HIGHLAND AVE, SUITE 4B
DOWNERS GROVE, IL 60515

Dupage County (630) 963-4990

BARRY SADEGI, M.D., S.C.

Obstetrics & Gynecology

3825 HIGHLAND AVE, 3B
DOWNERS GROVE, IL 60515

Dupage County (630) 434-9300

DR. PAUL J WEST M.D.

Urology

3825 HIGHLAND AVE, SUITE 207
DOWNERS GROVE, IL 60515

Dupage County (630) 960-1498

DR. CYNTHIA ANN WOLLENSCHLAGER M.D.

Internal Medicine (Infectious Disease)

3825 HIGHLAND AVE, TOWER I, SUITE 3F
DOWNERS GROVE, IL 60515

Dupage County (630) 971-9275

MATTHEW OSCEOLA NORA MD

Internal Medicine (Clinical Cardiac Electrophysiology)

3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515

Dupage County (630) 719-4799

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 Rockford Yapp's NPI number?

The NPI number for Rockford Yapp is 1356327910. It was assigned to this individual provider in the NPPES registry on December 15, 2005.

Where is Rockford Yapp located?

Rockford Yapp practices at 3825 Highland Ave Tower 2 - Suite 302, Downers Grove, IL 60515. The listed phone number is (630) 434-9312.

What is Rockford Yapp's specialty?

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

Is Rockford Yapp enrolled in Medicare?

Yes. Rockford Yapp 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 Rockford Yapp accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Rockford Yapp 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 Rockford Yapp affiliated with any hospitals?

According to CMS data, Rockford Yapp is affiliated with Adventist Hinsdale Hospital, Edward Hospital and Advocate Good Samaritan Hospital.

When was this NPI record last updated?

The NPPES record for Rockford Yapp was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.