ERIC JOSEPH CHACKO M.D.
NPI 1437654662
Internal Medicine - Nephrology in New Haven, CT

Q: What is Eric Chacko's NPI number?

The NPI number for Eric Chacko is 1437654662. It was assigned to this individual provider in the NPPES registry on March 28, 2018.

Q: What is Eric Chacko's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Eric Chacko was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.

Active since March 28, 2018PECOS EnrolledAccepts Medicare Assignment

91.47/100

CMS Quality Rating

136 SHERMAN AVE STE 405, NEW HAVEN, CT 06511(203) 787-0117(203) 777-3559 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jun 4, 2026, Jun 4, 2021, Mar 28, 2018 (3 updates tracked since 2018).

On this page

About Eric Joseph Chacko M.d. NPPES

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

ERIC JOSEPH CHACKO M.D. (NPI 1437654662) is an individual nephrology provider in New Haven, Connecticut, licensed in Connecticut (74328) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1437654662

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameERIC JOSEPH CHACKOCredential: M.D.

Location Address136 SHERMAN AVE STE 405New Haven, CT 06511-5210

Mailing Address136 Sherman Ave Ste 405New Haven, CT 06511-5210 · (203) 787-0117 · Fax (203) 777-3559

Phone(203) 787-0117

Fax(203) 777-3559

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMarch 28, 2018

Last NPPES UpdateJune 4, 20263 updates tracked since enumeration

NPPES CertifiedJune 4, 2026

✔ NPI 1437654662 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CT · 74328

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

136 SHERMAN AVE STE 405, New Haven, CT 06511

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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

Eric Joseph Chacko 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 ID5597011379

PECOS Enrollment IDI20230706001837

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 Reassignment

Medicare enrollment records show Eric Chacko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Metabolism Associates PC

Same address

Nephrology

136 SHERMAN AVE, SUITE 405
New Haven, CT 06511

Reassigned Medicare billing, Connecticut enrollment
9 clinicians in this Medicare group

NPI 1861473787 (203) 787-0117

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 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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

206 services74 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

92 services19 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

85 services33 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.

79 services49 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

72 services45 patients

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.

47 services45 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.

91.47/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Promoting Interoperability

Improvement Activities

Cost

51.99

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 Eric Chacko's NPI number?

The NPI number for Eric Chacko is 1437654662. It was assigned to this individual provider in the NPPES registry on March 28, 2018.

Where is Eric Chacko located?

Eric Chacko practices at 136 Sherman Ave Ste 405, New Haven, CT 06511. The listed phone number is (203) 787-0117.

What is Eric Chacko's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Eric Chacko enrolled in Medicare?

Yes. Eric Chacko 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 organization bills Medicare for Eric Chacko's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eric Chacko reassigns Medicare benefits to Metabolism Associates PC (New Haven, CT). The 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 Eric Chacko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eric Chacko accept?

Health plans from Anthem Blue Cross and Blue Shield list Eric Chacko 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 Eric Chacko was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.