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

DR. JOHN M ELSER MD
NPI 1982677894
Internal Medicine in Naugatuck, CT

Active since February 10, 2006PECOS Enrolled
305 CHURCH ST, NAUGATUCK, CT 06770(203) 729-6641(203) 729-3206 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. John M Elser Md NPPES

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

DR. JOHN M ELSER MD (NPI 1982677894) is an individual internal medicine provider in Naugatuck, Connecticut, licensed in Connecticut (026476) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Connecticut School Of Medicine (1983).

NPPES Registry Identity

NPI1982677894
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN M ELSERCredential: MD
Location Address305 CHURCH STNaugatuck, CT 06770-2836
Mailing Address1625 Straits Tpke, Suite #201Middlebury, CT 06762-1805 · (203) 573-9512 · Fax (203) 568-2904
Fax(203) 729-3206
Sole ProprietorNo
Medical School CMSUniversity Of Connecticut School Of MedicineGraduated 1983
Enumeration DateFebruary 10, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1982677894 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CT · 026476
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
305 CHURCH ST, Naugatuck, CT 06770

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. John M Elser 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 ID6901948355
PECOS Enrollment IDI20100122000287
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 9

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 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.
180 services95 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.
136 services82 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
63 services63 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
60 services60 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
57 services24 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
46 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06770 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
8 suppliers21 claims69 services$6.00 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 8

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

Internal Medicine
305 CHURCH ST, SUITE #1
NAUGATUCK, CT 06770
Internal Medicine
305 CHURCH ST, SUITE 6
NAUGATUCK, CT 06770
Internal Medicine
305 CHURCH ST
NAUGATUCK, CT 06770
Internal Medicine
305 CHURCH ST
NAUGATUCK, CT 06770
Dentist (General Practice)
305 CHURCH ST
NAUGATUCK, CT 06770
Social Worker (Clinical)
305 CHURCH ST
NAUGATUCK, CT 06770
Community/Behavioral Health
305 CHURCH ST, UNIT 5
NAUGATUCK, CT 06770
Dentist (General Practice)
305 CHURCH ST
NAUGATUCK, CT 06770

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 John Elser's NPI number?

The NPI number for John Elser is 1982677894. It was assigned to this individual provider in the NPPES registry on February 10, 2006.

Where is John Elser located?

John Elser practices at 305 Church St, Naugatuck, CT 06770. The listed phone number is (203) 729-6641.

What is John Elser's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Elser enrolled in Medicare?

Yes. John Elser 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.

When was this NPI record last updated?

The NPPES record for John Elser was last updated on July 13, 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.