Physician Profile
Unclaimed ProfileAbout ELSER
John M Elser, MD practices internal medicine in Naugatuck, CT. John is a 1983 graduate of University of Connecticut School of Medicine. According to Medicare claims data, John cared for 468 Medicare patients across 697 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (203) 729-6641
- Email not available
Practice Locations
305 CHURCH ST
Naugatuck, CT 06770
Procedures Most Often Billed to Medicare
697 services · 468 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
25 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
180 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
136 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
86 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
63 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
60 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
57 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
46 |
| Administration of influenza virus vaccine | Billing code | G0008 |
28 |
| Transitional care management services for problem of at least moderate complexity | Office visit | 99495 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 28 related providers in 4 groups
Other internal medicines in Naugatuck 4
Same specialty, same city.
Trained at University of Connecticut School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at University of Connecticut School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine split virus, preservative free 8
Providers in CT who bill this service to Medicare most often.
Common questions
What does Dr. Elser specialize in?
Dr. Elser is an internal medicine in Naugatuck, CT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Elser located?
Dr. Elser is listed at 305 CHURCH ST, Naugatuck, CT 06770. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Elser's phone number?
The number on file is (203) 729-6641. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Elser's NPI number?
Dr. Elser's National Provider Identifier is 1982677894. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Elser go to medical school?
Dr. Elser attended University of Connecticut School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Elser been practicing?
Dr. Elser has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Elser do most often?
According to Medicare billing data, Dr. Elser provides treatments such as influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Elser confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Elser. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.