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DR. IRINA G ROSEWATER M.D.
NPI 1477793529
Internal Medicine - Endocrinology, Diabetes & Metabolism in New Haven, CT

Active since March 03, 2009PECOS EnrolledAccepts Medicare Assignment
94.17/100
CMS Quality Rating
200 ORCHARD ST, STE 207, NEW HAVEN, CT 06511(203) 776-4444(203) 776-4441 Get Directions Write a Review

NPPES record last updated: November 16, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Irina G Rosewater M.d. NPPES

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

DR. IRINA G ROSEWATER M.D. (NPI 1477793529) is an individual endocrinology, diabetes & metabolism provider in New Haven, Connecticut, licensed in Connecticut (044226) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2002).

NPPES Registry Identity

NPI1477793529
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. IRINA G ROSEWATERCredential: M.D.
Location Address200 ORCHARD ST, STE 207New Haven, CT 06511-3206
Mailing Address200 Orchard St, Ste 207New Haven, CT 06511-5363 · (203) 776-4444 · Fax (203) 776-4441
Phone(203) 776-4444
Fax(203) 776-4441
Sole ProprietorNo
Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 2002
Enumeration DateMarch 3, 2009
Last NPPES UpdateNovember 16, 2009
✔ NPI 1477793529 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CT · 044226
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.
200 ORCHARD ST, New Haven, CT 06511
Open in Google Maps ↗

Other Identifiers 1

Medicare PIN400003457CT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Irina G Rosewater 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 ID1456404912
PECOS Enrollment IDI20090730000310
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Irina Rosewater reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mill Hill Medical Consultants Inc
0.3 mi
Geriatric Medicine
874 HOWARD AVE
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • Medicare enrollment name: Northeast Medical Group Inc
  • 1,824 clinicians in this Medicare group
NPI 1891019675 (203) 688-8200
Endocrine Assoc Of Ct LLC
4.7 mi
Endocrinology, Diabetes & Metabolism
1952 WHITNEY AVE, SUITE 14
Hamden, CT 06517
  • Reassigned Medicare billing, Connecticut enrollment
  • 15 clinicians in this Medicare group
NPI 1295929230 (203) 776-4444

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

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.
2,040 services22 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.
432 services186 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.
236 services180 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.
116 services50 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
99 services68 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.
92 services61 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06511 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.

94.17/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.94
Promoting Interoperability99.39
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 3

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
24 suppliers77 claims286 services$6.21 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
12 suppliers29 claims46 services$1.06 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
11 suppliers140 claims140 services$186.36 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 20

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

KAI H YANG MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 ORCHARD ST, #207
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 776-4444
ERIC FAN M.D.
Internal Medicine
200 ORCHARD ST, 303
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 867-5600
MS. MILDRED GRENOUGH CISW
Social Worker (Clinical)
200 ORCHARD ST, SUITE 301
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 789-2191
HEATHER ALISON BRIGANCE APRN, CNM
Advanced Practice Midwife
200 ORCHARD ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 789-3029
STEPHANIE WEMM
Psychologist
200 ORCHARD ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (606) 329-8588
DR. ADAM B MAYERSON M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 ORCHARD ST, SUITE #207
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 776-4444
DR. KATHLEEN MARY BROWN BARONE D.C. OTR
Chiropractor (Occupational Health)
200 ORCHARD ST, SUITE 307
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 777-2100
KRISTIANE N PROTO MSN,APRN,FNP-BC
Nurse Practitioner (Family)
200 ORCHARD ST, SUITE 207
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 777-6730

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 Irina Rosewater's NPI number?

The NPI number for Irina Rosewater is 1477793529. It was assigned to this individual provider in the NPPES registry on March 3, 2009.

Where is Irina Rosewater located?

Irina Rosewater practices at 200 Orchard St Ste 207, New Haven, CT 06511. The listed phone number is (203) 776-4444.

What is Irina Rosewater's specialty?

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

Is Irina Rosewater enrolled in Medicare?

Yes. Irina Rosewater 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.

Which organizations bill Medicare for Irina Rosewater's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Irina Rosewater reassigns Medicare benefits to 2 organizations: Mill Hill Medical Consultants Inc (New Haven, CT) and Endocrine Assoc Of Ct LLC (Hamden, CT). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Irina Rosewater's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Irina Rosewater accept?

Health plans from Anthem Blue Cross and Blue Shield list Irina Rosewater 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.

When was this NPI record last updated?

The NPPES record for Irina Rosewater was last updated on November 16, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.