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DR. MARIANO RAMIREZ LIBROJO JR. M.D.
NPI 1689867533
Internal Medicine in Norwich, CT

Active since August 23, 2007PECOS EnrolledAccepts Medicare Assignment
92.22/100
CMS Quality Rating
326 WASHINGTON ST, NORWICH, CT 06360(860) 889-8331 Get Directions Write a Review

NPPES record last updated: December 2, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Mariano Ramirez Librojo Jr. M.d. NPPES

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

DR. MARIANO RAMIREZ LIBROJO JR. M.D. (NPI 1689867533) is an individual internal medicine provider in Norwich, Connecticut, licensed in Connecticut (045898) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1689867533
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARIANO RAMIREZ LIBROJO JR.Credential: M.D.
Location Address326 WASHINGTON STNorwich, CT 06360-2740
Mailing Address135 Ledgewood Rd, Apt 104Groton, CT 06340-6608
Phone(860) 889-8331
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateAugust 23, 2007
Last NPPES UpdateDecember 2, 2008
✔ NPI 1689867533 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 · 045898
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.
326 WASHINGTON ST, Norwich, CT 06360
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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. Mariano Ramirez Librojo Jr. 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 ID9234292988
PECOS Enrollment IDI20090107000329
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

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 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.
187 services181 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06360 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.

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.

92.22/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality92.15
Promoting Interoperability100
Improvement Activities40
Cost58.82

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.

NATALIE GLYBIN
Nurse Anesthetist, Certified Registered
326 WASHINGTON ST
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 889-8331
ROBERT V SCIALABBA LCSW
Social Worker (Clinical)
326 WASHINGTON ST, WILLIAM W BACKUS HOSPITAL
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 889-8331
PARUL PAHAL
Family Medicine
326 WASHINGTON ST
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 942-2565
DR. MOHAMMED A QURESHI MD
Internal Medicine (Geriatric Medicine)
326 WASHINGTON ST
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 889-8331
TATIANA E BICKNELL LCSW
Social Worker (Clinical)
326 WASHINGTON ST
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 823-6321
DR. DANIEL FAGNANT DO
Emergency Medicine
326 WASHINGTON ST
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 889-8331
CHERYL YUDKIN MSW
Social Worker
326 WASHINGTON ST, WILLIAM W BACKUS HOSPITAL
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 889-8331
NICOLE LOUISE ROBITAILLE
Physician Assistant (Surgical)
326 WASHINGTON ST
NORWICH, CT 06360
Southeastern Connecticut Planning Region (860) 326-8661

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 Mariano Librojo's NPI number?

The NPI number for Mariano Librojo is 1689867533. It was assigned to this individual provider in the NPPES registry on August 23, 2007.

Where is Mariano Librojo located?

Mariano Librojo practices at 326 Washington St, Norwich, CT 06360. The listed phone number is (860) 889-8331.

What is Mariano Librojo's specialty?

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

Is Mariano Librojo enrolled in Medicare?

Yes. Mariano Librojo 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 Mariano Librojo was last updated on December 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.