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HARINI HOSAIN MD
NPI 1801819255
Allergy & Immunology in Bloomfield, CT

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
35 JOLLEY DR STE 103, BLOOMFIELD, CT 06002(860) 286-0041 Get Directions Write a Review

NPPES record last updated: March 5, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 5, 2025, Jun 22, 2021 (2 updates tracked since 2021).

About Harini Hosain Md NPPES

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

HARINI HOSAIN MD (NPI 1801819255) is an individual allergy & immunology provider in Bloomfield, Connecticut, licensed in Connecticut (042489) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Texas Tech University Health Science Center School Of Medicine (1988).

NPPES Registry Identity

NPI1801819255
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameHARINI HOSAINCredential: MD
Location Address35 JOLLEY DR STE 103Bloomfield, CT 06002-4228
Mailing Address35 Jolley Dr Ste 103Bloomfield, CT 06002-4228 · (860) 286-0041 · Fax (860) 243-8601
Phone(860) 286-0041
Sole ProprietorNo
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 1988
Enumeration DateJuly 26, 2006
Last NPPES UpdateMarch 5, 20252 updates tracked since enumeration
NPPES CertifiedMarch 5, 2025
✔ NPI 1801819255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in CT · 042489
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
35 JOLLEY DR STE 103, Bloomfield, CT 06002
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Other Identifiers 2

Medicaid001424895CT
Other010042489CT01CT · Anthem Blue Shield

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

Harini Hosain Md 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 ID2769422914
PECOS Enrollment IDI20050819000668
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 Harini Hosain reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Collins Medical Associates 2 PC
3.1 mi
Internal Medicine
95 WOODLAND ST FL 1
Hartford, CT 06105
  • Reassigned Medicare billing, Connecticut enrollment
  • 45 clinicians in this Medicare group
NPI 1912928169 (860) 714-7362

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 5

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.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
770 services24 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.
119 services50 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.
52 services35 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
29 services18 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.
27 services27 patients

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 Harini Hosain's NPI number?

The NPI number for Harini Hosain is 1801819255. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Harini Hosain located?

Harini Hosain practices at 35 Jolley Dr Ste 103, Bloomfield, CT 06002. The listed phone number is (860) 286-0041.

What is Harini Hosain's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Harini Hosain enrolled in Medicare?

Yes. Harini Hosain 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 Harini Hosain's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Harini Hosain reassigns Medicare benefits to Collins Medical Associates 2 PC (Hartford, 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 Harini Hosain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Harini Hosain accept?

Health plans from Anthem Blue Cross and Blue Shield list Harini Hosain 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 Harini Hosain was last updated on March 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.