SHELLY AHN IM MD
NPI 1740496470
Internal Medicine - Endocrinology, Diabetes & Metabolism in Greenwich, CT

Q: What is Shelly Im's NPI number?

The NPI number for Shelly Im is 1740496470. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Q: What is Shelly Im's specialty?

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

Q: Is Shelly Im enrolled in Medicare?

No. Shelly Im has opted out of Medicare through October 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Shelly Im was last updated on October 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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 May 16, 2007Opted out of Medicare · through Oct 1, 2026

500 W PUTNAM AVE STE 435, GREENWICH, CT 06830(475) 335-8692(646) 974-9714 Get Directions Write a Review

NPPES record last updated: October 17, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Shelly Ahn Im Md NPPES

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

SHELLY AHN IM MD (NPI 1740496470) is an individual endocrinology, diabetes & metabolism provider in Greenwich, Connecticut, licensed in New York (238571) and active in the NPI registry since May 2007. She has opted out of Medicare through October 1, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1740496470

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameSHELLY AHN IMCredential: MD

Location Address500 W PUTNAM AVE STE 435Greenwich, CT 06830-6000

Mailing Address500 W Putnam Ave Ste 435Greenwich, CT 06830-6000 · (475) 335-8692 · Fax (646) 974-9714

Phone(475) 335-8692

Fax(646) 974-9714

Sole ProprietorYes

Enumeration DateMay 16, 2007

Last NPPES UpdateOctober 17, 2024

NPPES CertifiedOctober 17, 2024

✔ NPI 1740496470 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 NY · 238571

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.

500 W PUTNAM AVE STE 435, Greenwich, CT 06830

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Shelly Ahn Im Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 1, 2024 through October 1, 2026.

Opt-Out Effective DateOctober 1, 2024

Opt-Out In Effect ThroughOctober 1, 2026Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 18

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.

1,921 services29 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.

306 services243 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

204 services170 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

123 services110 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.

105 services89 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

89 services73 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

87 services73 patients

Liver function blood test panel 80076

A liver function blood test panel helps check the health of your liver. It measures various proteins, liver enzymes, and bilirubin in your blood. If these levels are too high or too low, it could signal a liver problem. It's a simple, non-invasive test that involves drawing blood.

85 services71 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

81 services76 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

79 services66 patients

Urine microalbumin (protein) level 82043

The urine microalbumin level test measures the amount of a protein called albumin in your urine. This test helps to detect early signs of kidney damage. High levels of albumin may suggest your kidneys aren't functioning properly. It's a simple, non-invasive test that involves providing a urine sample.

74 services64 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

74 services64 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

65 services39 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

61 services56 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.

45 services34 patients

Parathormone (parathyroid hormone) level 83970

The Parathormone level test measures the amount of parathyroid hormone in your blood. This hormone controls calcium and phosphorus levels in the body, which are vital for bone health. Abnormal levels may indicate issues like kidney disease or parathyroid gland disorders.

27 services26 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.

20 services20 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

17 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06830 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.

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224

DME-Other DME · category DE017N

4 suppliers11 claims143 services$17.12 avg. paid by Medicare

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225

DME-Other DME · category DE017N

4 suppliers12 claims390 services$2.37 avg. paid by Medicare

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

33 suppliers105 claims348 services$6.35 avg. paid by Medicare

Normal, low and high calibrator solution / chips A4256

DME-Other DME · category DE000N

6 suppliers19 claims19 services$2.78 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

15 suppliers37 claims83 services$1.07 avg. paid by Medicare

External ambulatory infusion pump, insulin E0784

DME-Other DME · category DE017N

2 suppliers15 claims15 services$304.95 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 3

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

ATRIA PHYSICIAN PRACTICE NEW YORK, PC

Internal Medicine

500 W PUTNAM AVE STE 435
GREENWICH, CT 06830

Western Connecticut Planning Region (212) 600-2000

GREENWICH MEDICAL ASSOCIATES, P.C.

Obstetrics & Gynecology

500 W PUTNAM AVE STE 435
GREENWICH, CT 06830

Western Connecticut Planning Region (203) 861-7890

DR. RUPAL DILIP CHHABRA D.O.

Internal Medicine

500 W PUTNAM AVE STE 435
GREENWICH, CT 06830

Western Connecticut Planning Region (475) 335-8692

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 Shelly Im's NPI number?

The NPI number for Shelly Im is 1740496470. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Where is Shelly Im located?

Shelly Im practices at 500 W Putnam Ave Ste 435, Greenwich, CT 06830. The listed phone number is (475) 335-8692.

What is Shelly Im's specialty?

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

Is Shelly Im enrolled in Medicare?

No. Shelly Im has opted out of Medicare through October 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Shelly Im was last updated on October 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.