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PROVIDER PROFILE · NPI 1104829506

John PorembaM.D.

EndocrinologyNashua, NHI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

CCN 300003
Hospital
CCN 300011
Hospital
CCN 300012
Hospital
CCN 300020
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
2,593
Beneficiaries
—
Total drug cost
$1.0M
Distinct drugs
40
Brand share
61.8%
Top prescribed drugs
Levothyroxine Sodium299 claims
Metformin Hcl208 claims
Insulin Glargine,hum.Rec.Anlog153 claims
Semaglutide134 claims
Metformin Hcl120 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
849
Unique beneficiaries
—
Total services
2,322
Distinct HCPCS
10
Medicare payment
$89K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 38 Endocrinology providers in NH — top quintile (cohort median 784).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$127
Payment records
2
By payment type
Food and Beverage$127
REFERRAL NETWORK

Where John Poremba's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 14 inbound referrers · 31 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
JOSELOW, WANE57162
LAROCQUE, PAMELA41161
HCA HEALTH SERVICES OF NEW HAMPSHIRE INC23102
David Fontaine
Diagnostic Radiology · Bedford, NH
2359
Robert Sprague
Diagnostic Radiology · Bedford, NH
2155
Patrick Hickle
Cardiology · Manchester, NH
20105
MARY HITCHCOCK MEMORIAL HOSPITAL1968
Hetal Dave
Internal Medicine · Manchester, NH
19186
Peter Kasyjanski
Podiatry · Manchester, NH
1651
CONCORD HOSPITAL, INC.1476
Muhammad Mirza
Internal Medicine · Manchester, NH
1360
Shellie Hafer
Nurse Practitioner · Scarborough, ME
1339
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ELLIOT HOSPITAL OF THE CITY OF MANCHESTER4213,800
LAROCQUE, PAMELA68229
CATHOLIC MEDICAL CENTER39160
JOSELOW, WANE37110
LOGAN, DONALD2751
Carl Fier
Interventional Cardiology · Manchester, NH
24100
OLMSTEAD, EDWIN2452
John Januario
Diagnostic Radiology · Bedford, NH
2469
Tong Zhu
Cardiology · Manchester, NH
2488
HCA HEALTH SERVICES OF NEW HAMPSHIRE INC2278
David Fontaine
Diagnostic Radiology · Bedford, NH
2254
American Medical Response Of Massachusetts Inc
Ambulance Service Provider · Springfield, MA
2291
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.