DR. JOHN A POREMBA M.D.
NPI 1104829506
Internal Medicine - Endocrinology, Diabetes & Metabolism in Nashua, NH

Active since May 31, 2005PECOS EnrolledAccepts Medicare Assignment
17 RIVERSIDE ST STE 202, NASHUA, NH 03062(603) 577-5760(603) 577-5765 Get Directions Write a Review

NPPES record last updated: February 21, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. John A Poremba M.d. NPPES

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

DR. JOHN A POREMBA M.D. (NPI 1104829506) is an individual endocrinology, diabetes & metabolism provider in Nashua, New Hampshire, licensed in New Hampshire (13776) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1104829506
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. JOHN A POREMBACredential: M.D.
Location Address17 RIVERSIDE ST STE 202Nashua, NH 03062-1383
Mailing AddressPo Box 3677Nashua, NH 03061-3677 · (603) 577-7900 · Fax (603) 577-7972
Fax(603) 577-5765
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateMay 31, 2005
Last NPPES UpdateFebruary 21, 2023
NPPES CertifiedFebruary 21, 2023
NPI 1104829506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Licenses Licensed in NH · 13776 Licensed in PA · MD051524L
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
17 RIVERSIDE ST STE 202, Nashua, NH 03062

Accepted Insurance

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 A Poremba M.d. 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 ID3779650130
PECOS Enrollment IDI20080926000286
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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
1,080 services13 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.
245 services168 patients
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.
198 services133 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
181 services114 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
151 services75 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.
37 services37 patients

Hospital Affiliations CMS Care Compare 4

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

Mary Hitchcock Memorial Hospital

Acute Care Hospitals · Lebanon, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300003
Location1 Medical Center DriveLebanon, NH 03756 · Grafton County
Emergency services Birthing friendly

St Joseph Hospital

Acute Care Hospitals · Nashua, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number300011
Location172 Kinsley StNashua, NH 03060 · Hillsborough County
Emergency services Birthing friendly

Elliot Hospital

Acute Care Hospitals · Manchester, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300012
Location1 Elliot WayManchester, NH 03103 · Hillsborough County
Emergency services Birthing friendly

Southern Nh Medical Center

Acute Care Hospitals · Nashua, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300020
Location8 Prospect StreetNashua, NH 03060 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03062 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
$132.09 typical visit price
range $57.75 – $174.26
Typical copayment $33.02 (range $14.43 – $43.56)
Most-billed visit code 99204
Established Patient
$101.54 typical visit price
range $18.70 – $142.15
Typical copayment $25.38 (range $4.67 – $35.53)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
48%684 patients3/55-star benchmark: 85%
Diabetes: Eye Exam
Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period
46%578 patients2/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
91%3,197 patients3/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
80%876 patients4/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%534 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
32%1,239 patients2/55-star benchmark: 97%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
31%1,164 patients2/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
98%1,239 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
45%1,239 patients3/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
39%1,239 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 7

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
7 suppliers34 claims384 services$18.09 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
7 suppliers34 claims1,180 services$2.31 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
24 suppliers261 claims725 services$5.99 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
18 suppliers96 claims152 services$1.02 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
2 suppliers34 claims34 services$304.70 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
17 suppliers618 claims627 services$185.01 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 6

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

Dietitian, Registered
17 RIVERSIDE ST STE 202
NASHUA, NH 03062
Internal Medicine (Endocrinology, Diabetes & Metabolism)
17 RIVERSIDE ST STE 202
NASHUA, NH 03062
Internal Medicine
17 RIVERSIDE ST STE 202
NASHUA, NH 03062
Internal Medicine (Endocrinology, Diabetes & Metabolism)
17 RIVERSIDE ST STE 202
NASHUA, NH 03062
Dietitian, Registered
17 RIVERSIDE ST STE 202
NASHUA, NH 03062
Nurse Practitioner (Family)
17 RIVERSIDE ST STE 202
NASHUA, NH 03062

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 Poremba's NPI number?

The NPI number for John Poremba is 1104829506. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Where is John Poremba located?

John Poremba practices at 17 Riverside St Ste 202, Nashua, NH 03062. The listed phone number is (603) 577-5760.

What is John Poremba's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is John Poremba enrolled in Medicare?

Yes. John Poremba 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.

What insurance does John Poremba accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list John Poremba as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Poremba affiliated with any hospitals?

According to CMS data, John Poremba is affiliated with Mary Hitchcock Memorial Hospital, St Joseph Hospital, Elliot Hospital and Southern Nh Medical Center.

When was this NPI record last updated?

The NPPES record for John Poremba was last updated on February 21, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.