DR. ASHWIN N ANANTHAKRISHNAN M.D., M.P.H
NPI 1033292545
Internal Medicine - Gastroenterology in Boston, MA

Q: What is Ashwin Ananthakrishnan's NPI number?

The NPI number for Ashwin Ananthakrishnan is 1033292545. It was assigned to this individual provider in the NPPES registry on October 21, 2006.

Q: What is Ashwin Ananthakrishnan's specialty?

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

Active since October 21, 2006PECOS EnrolledAccepts Medicare Assignment

165 CAMBRIDGE ST 9TH FL, BOSTON, MA 02114(617) 726-0267(617) 726-3080 Get Directions Write a Review

NPPES record last updated: December 10, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Ashwin N Ananthakrishnan M.d., M.p.h NPPES

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

DR. ASHWIN N ANANTHAKRISHNAN M.D., M.P.H (NPI 1033292545) is an individual gastroenterology provider in Boston, Massachusetts, licensed in Massachusetts (242671) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1033292545

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. ASHWIN N ANANTHAKRISHNANCredential: M.D., M.P.H

Location Address165 CAMBRIDGE ST 9TH FLBoston, MA 02114

Mailing AddressPo Box 9142Charlestown, MA 02114 · (617) 726-0267 · Fax (617) 726-3080

Phone(617) 726-0267

Fax(617) 726-3080

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateOctober 21, 2006

Last NPPES UpdateDecember 10, 2014

✔ NPI 1033292545 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MA · 242671

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License 48732 - 20 (WI)

165 CAMBRIDGE ST 9TH FL, Boston, MA 02114

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Other Identifiers 2

Medicaid110084764/AMA

Medicare PIN001605501MA

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. Ashwin N Ananthakrishnan 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 ID4284766635

PECOS Enrollment IDI20100720000732

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 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 high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

126 services83 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

69 services52 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 services57 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

41 services34 patients

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

38 services33 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

38 services38 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.

34 services34 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

30 services30 patients

Biopsy of large bowel using a flexible endoscope 45380

23 services23 patients

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

19 services19 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.

16 services15 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.

14 services14 patients

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

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

North Shore Medical Center -

Acute Care Hospitals · Salem, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220035

Location81 Highland AvenueSalem, MA 01970 · Essex County

Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220101

Location2014 Washington StreetNewton, MA 02462 · Middlesex County

Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220110

Location75 Francis StreetBoston, MA 02115 · Suffolk County

Emergency services Birthing friendly

Wentworth-Douglass Hospital

Acute Care Hospitals · Dover, NH

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number300018

Location789 Central AveDover, NH 03820 · Strafford County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385

DME-Orthotic Devices · category DF010N

1 supplier16 claims710 services$4.92 avg. paid by Medicare

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185

Other-Enteral and Parenteral · category OB005N

2 suppliers57 claims1,072 services$11.26 avg. paid by Medicare

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 10 to 51 grams of protein - premix B4189

Other-Enteral and Parenteral · category OB005N

1 supplier34 claims111 services$179.22 avg. paid by Medicare

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements and vitamins, including preparation, any strength, 74 to 100 grams of protein - premix B4197

Other-Enteral and Parenteral · category OB005N

1 supplier20 claims140 services$280.66 avg. paid by Medicare

Parenteral nutrition supply kit; premix, per day B4220

Other-Enteral and Parenteral · category OB005N

2 suppliers57 claims269 services$8.05 avg. paid by Medicare

Parenteral nutrition administration kit, per day B4224

Other-Enteral and Parenteral · category OB005N

2 suppliers57 claims269 services$25.13 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Ashwin Ananthakrishnan's NPI number?

The NPI number for Ashwin Ananthakrishnan is 1033292545. It was assigned to this individual provider in the NPPES registry on October 21, 2006.

Where is Ashwin Ananthakrishnan located?

Ashwin Ananthakrishnan practices at 165 Cambridge St 9th Fl, Boston, MA 02114. The listed phone number is (617) 726-0267.

What is Ashwin Ananthakrishnan's specialty?

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

Is Ashwin Ananthakrishnan enrolled in Medicare?

Yes. Ashwin Ananthakrishnan 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.

Is Ashwin Ananthakrishnan affiliated with any hospitals?

According to CMS data, Ashwin Ananthakrishnan is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Wentworth-Douglass Hospital.

When was this NPI record last updated?

The NPPES record for Ashwin Ananthakrishnan was last updated on December 10, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.