DR. RAVI S AINAPUDI
NPI 1477551091
Internal Medicine - Gastroenterology in Smithtown, NY

Q: What is Ravi Ainapudi's NPI number?

The NPI number for Ravi Ainapudi is 1477551091. It was assigned to this individual provider in the NPPES registry on July 8, 2005. The provider is also known as Dr. Ravi Ainapudi M.D.

Q: What is Ravi Ainapudi'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 Ravi Ainapudi was last updated on December 10, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 08, 2005PECOS EnrolledAccepts Medicare Assignment

317 MIDDLE COUNTRY RD, SUITE 1, SMITHTOWN, NY 11787(631) 360-4000(631) 360-4100 Get Directions Write a Review

NPPES record last updated: December 10, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Ravi S Ainapudi NPPES

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

DR. RAVI S AINAPUDI (NPI 1477551091) is an individual gastroenterology provider in Smithtown, New York, licensed in New York (234383) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1477551091

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. RAVI S AINAPUDI

Location Address317 MIDDLE COUNTRY RD, SUITE 1Smithtown, NY 11787-2818

Mailing Address317 Middle Country Rd, Suite 1Smithtown, NY 11787-2818 · (631) 360-4000 · Fax (631) 360-4100

Phone(631) 360-4000

Fax(631) 360-4100

Sole ProprietorNo

Medical School CMSOtherGraduated 1986

Enumeration DateJuly 8, 2005

Last NPPES UpdateDecember 10, 2007

✔ NPI 1477551091 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 NY · 234383

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.

317 MIDDLE COUNTRY RD, Smithtown, NY 11787

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Other Names 1

Professional Name (2)Dr. Ravi Ainapudi M.d

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. Ravi S Ainapudi 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 ID2567413974

PECOS Enrollment IDI20050202001018

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 Reassignment

Medicare enrollment records show Ravi Ainapudi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chs Physician Partners, P.C

9.6 mi

Family Medicine

213 MONTAUK HWY
West Sayville, NY 11796

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Chs Physician Partners PC
944 clinicians in this Medicare group

NPI 1679823512 (631) 563-6205

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 20

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.

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.

317 services147 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.

315 services277 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.

190 services190 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.

175 services175 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

117 services114 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.

115 services115 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.

95 services68 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.

83 services82 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.

64 services60 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.

41 services41 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.

27 services27 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

25 services22 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.

22 services22 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.

22 services16 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.

17 services17 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.

15 services15 patients

Biopsy of large bowel using a flexible endoscope 45380

14 services14 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

12 services12 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

12 services12 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY

4/5 CMS rating

OwnershipGovernment - State

CMS Certification Number330393

LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County

Emergency services Birthing friendly

St Catherine Of Siena Hospital Medical Center

Acute Care Hospitals · Smithtown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330401

Location50 Route 25ASmithtown, NY 11787 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11787 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

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 Ravi Ainapudi's NPI number?

The NPI number for Ravi Ainapudi is 1477551091. It was assigned to this individual provider in the NPPES registry on July 8, 2005. The provider is also known as Dr. Ravi Ainapudi M.D.

Where is Ravi Ainapudi located?

Ravi Ainapudi practices at 317 Middle Country Rd Suite 1, Smithtown, NY 11787. The listed phone number is (631) 360-4000.

What is Ravi Ainapudi's specialty?

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

Is Ravi Ainapudi enrolled in Medicare?

Yes. Ravi Ainapudi 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 organization bills Medicare for Ravi Ainapudi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ravi Ainapudi reassigns Medicare benefits to Chs Physician Partners, P.C (West Sayville, NY). The 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 Ravi Ainapudi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Ravi Ainapudi affiliated with any hospitals?

According to CMS data, Ravi Ainapudi is affiliated with Suny/Stony Brook University Hospital and St Catherine Of Siena Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Ravi Ainapudi was last updated on December 10, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.