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SHARON TAN MD
NPI 1801810668
Internal Medicine in West Hartford, CT

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
41 N MAIN ST, SUITE 300, WEST HARTFORD, CT 06107(860) 313-0448(860) 313-1464 Get Directions Write a Review

NPPES record last updated: May 13, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 13, 2024, Jun 21, 2021 (2 updates tracked since 2021).

About Sharon Tan Md NPPES

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

SHARON TAN MD (NPI 1801810668) is an individual internal medicine provider in West Hartford, Connecticut, licensed in Connecticut (039000) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1995).

NPPES Registry Identity

NPI1801810668
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameSHARON TANCredential: MD
Location Address41 N MAIN ST, SUITE 300West Hartford, CT 06107-1972
Mailing Address41 N Main St, Suite 300West Hartford, CT 06107-1972 · (860) 313-0448 · Fax (860) 313-1464
Phone(860) 313-0448
Fax(860) 313-1464
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateJuly 26, 2006
Last NPPES UpdateMay 13, 20242 updates tracked since enumeration
NPPES CertifiedMay 13, 2024
✔ NPI 1801810668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 039000
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.
Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X · License 03900 (CT)
41 N MAIN ST, West Hartford, CT 06107
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Other Identifiers 3

Other010039000CT02TN · Anthem Blue Shield
Medicaid001390004CT
Other2V5173Healthnet

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

Sharon Tan 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 ID4880661495
PECOS Enrollment IDI20040914000224
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 Sharon Tan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Collins Medical Associates 2 PC
2.4 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 7

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.

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.
140 services108 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
124 services124 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
64 services64 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.
58 services47 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
40 services34 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06107 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.

Other Providers at the Same Location NPPES 13

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

MRS. DAWN MCVEY COHEN LCSW
Social Worker (Clinical)
41 N MAIN ST, SUITE 303
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 838-4735
MS. KATHLEEN JOHNDROW LCSW
Social Worker (Clinical)
41 N MAIN ST
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 838-4752
JOHN PAPANDREA MD
Internal Medicine
41 N MAIN ST, SUITE 300
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 313-0448
MICHELE A MAREK APRN
Nurse Practitioner (Family)
41 N MAIN ST, STE 300
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 313-0448
MS. LORI DEVITO LCSW
Social Worker (Clinical)
41 N MAIN ST
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 838-4735
PETER D RADASCH PSY.D.
Psychologist
41 N MAIN ST
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 539-0185
MARK JASON POLATNICK M.D.
Internal Medicine
41 N MAIN ST, SUITE 300
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 313-0448
FAMILY RESOURCE AND DEVELOPMENT CENTER, LLC
Marriage & Family Therapist
41 N MAIN ST, 303
WEST HARTFORD, CT 06107
Capitol Planning Region (860) 838-4735

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 Sharon Tan's NPI number?

The NPI number for Sharon Tan is 1801810668. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Sharon Tan located?

Sharon Tan practices at 41 N Main St Suite 300, West Hartford, CT 06107. The listed phone number is (860) 313-0448.

What is Sharon Tan's specialty?

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

Is Sharon Tan enrolled in Medicare?

Yes. Sharon Tan 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 Sharon Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sharon Tan 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 Sharon Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sharon Tan accept?

Health plans from Anthem Blue Cross and Blue Shield list Sharon Tan 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 Sharon Tan was last updated on May 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.