MICHAEL JONATHAN OLDER M.D.
NPI 1194757625
Internal Medicine - Gastroenterology in Ayer, MA

Q: What is the provider's specialty?

The provider's specialty is Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

Active since July 07, 2006PECOS Enrolled

190 GROTON RD, SUITE 190, AYER, MA 01432(978) 772-3547 Get Directions Write a Review

NPPES record last updated: January 29, 2014. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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About Michael Jonathan Older M.d. NPPES

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

MICHAEL JONATHAN OLDER M.D. (NPI 1194757625) is an individual gastroenterology provider in Ayer, Massachusetts, licensed in Massachusetts (71640) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Morton Hospital, and is a graduate of Tufts University School Of Medicine (1988).

NPPES Registry Identity

NPI1194757625

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameMICHAEL JONATHAN OLDERCredential: M.D.

Location Address190 GROTON RD, SUITE 190Ayer, MA 01432-1124

Mailing Address190 Groton Rd, Suite 190Ayer, MA 01432-1124 · (978) 772-3547

Phone(978) 772-3547

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 1988

Enumeration DateJuly 7, 2006

Last NPPES UpdateJanuary 29, 2014

✔ NPI 1194757625 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 MA · 71640

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.

190 GROTON RD, Ayer, MA 01432

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Jonathan Older M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375590086

PECOS Enrollment IDI20050405000885

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 14

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 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, 30-39 minutes 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.

195 services135 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.

94 services86 patients

New patient office or other outpatient visit, 45-59 minutes 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.

88 services88 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.

72 services72 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.

65 services50 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.

49 services49 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

41 services34 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.

25 services24 patients

Initial hospital inpatient care per day, typically 50 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.

17 services17 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.

15 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.

13 services13 patients

Initial hospital inpatient care per day, typically 30 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.

11 services11 patients

Upper gastrointestinal (GI) endoscopy for acid reflux NAN12

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

0 services300 patients

Colonoscopy NAN13

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

0 services241 patients

Hospital Affiliations CMS Care Compare

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

Morton Hospital

Acute Care Hospitals · Taunton, MA

1/5 CMS rating

OwnershipProprietary

CMS Certification Number220073

Location88 Washington StreetTaunton, MA 02780 · Bristol County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01432 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.

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.

JEFFREY P ARPIN M.D.

Surgery

190 GROTON RD, STE 210
AYER, MA 01432

Middlesex County (978) 772-6265

DR. JONATHAN L HELD M.D.

Specialist

190 GROTON RD, SUITE 180
AYER, MA 01432

Middlesex County (978) 772-7221

DR. PAUL P HARASIMOWICZ III M. D.

Specialist

190 GROTON RD, SUITE 160
AYER, MA 01432

Middlesex County (978) 772-9846

PRIMARY CARE SPECIALISTS INC.

Clinic/Center (Primary Care)

190 GROTON RD, SUITE 110
AYER, MA 01432

Middlesex County (978) 772-2780

NASHOBA VALLEY UROLOGY, INC

Specialist

190 GROTON RD, SUITE 230
AYER, MA 01432

Middlesex County (978) 772-5419

PAUL L. GUNDERSON M.D.

Ophthalmology

190 GROTON RD
AYER, MA 01432

Middlesex County (978) 772-4000

STEVEN R. BRUSIE M.D.

Ophthalmology

190 GROTON RD
AYER, MA 01432

Middlesex County (978) 772-4000

VALLEY EYE PHYSICIANS AND SURGEONS, P.C.

Ophthalmology

190 GROTON RD, SUITE 240
AYER, MA 01432

Middlesex County (978) 772-4000

MICHAEL JONATHAN OLDER M.D.
NPI 1194757625
Internal Medicine - Gastroenterology in Ayer, MA

About Michael Jonathan Older M.d. NPPES

NPPES Registry Identity

Specialties & Licenses

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare Enrollment Status

Areas of Expertise CMS Part B claims 14

Hospital Affiliations CMS Care Compare

Morton Hospital

Physician Visit Costs CMS claims · ZIP area

Other Providers at the Same Location NPPES 20

Frequently Asked Questions

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