DR. AYAN CHATTERJEE M.D.
NPI 1265845804
Ophthalmology - Glaucoma Specialist in King Of Prussia, PA

Q: What is Ayan Chatterjee's NPI number?

The NPI number for Ayan Chatterjee is 1265845804. It was assigned to this individual provider in the NPPES registry on June 10, 2014.

Q: What is Ayan Chatterjee's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Glaucoma Specialist, with taxonomy code 207WX0009X.

Q: When was this NPI record last updated?

The NPPES record for Ayan Chatterjee was last updated on January 27, 2019. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since June 10, 2014PECOS EnrolledAccepts Medicare Assignment

200 MALL BLVD, KING OF PRUSSIA, PA 19406(866) 407-1852 Get Directions Write a Review

NPPES record last updated: January 27, 2019. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Dr. Ayan Chatterjee M.d. NPPES

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

DR. AYAN CHATTERJEE M.D. (NPI 1265845804) is an individual glaucoma specialist in King Of Prussia, Pennsylvania, licensed in North Carolina (2018-00306) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Wills Eye Hospital, and maintains a secondary practice location in Worcester.

NPPES Registry Identity

NPI1265845804

Entity TypeIndividualMale

Primary Taxonomy207WX0009X

Provider Legal NameDR. AYAN CHATTERJEECredential: M.D.

Location Address200 MALL BLVDKing Of Prussia, PA 19406-2902

Mailing Address861 N Leithgow StPhiladelphia, PA 19123-2127 · (919) 597-8747

Phone(866) 407-1852

Sole ProprietorNo

Medical School CMSPennsylvania State University College Of MedicineGraduated 2014

Enumeration DateJune 10, 2014

Last NPPES UpdateJanuary 27, 2019

✔ NPI 1265845804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyOphthalmology · Glaucoma SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0009X

License✔ Licensed in NC · 2018-00306

Definition

An ophthalmologist who specializes in the treatment of glaucoma and other disorders related to increased intraocular pressure and optic nerve damage. This specialty involves the medical and surgical treatment of these conditions.

Also ListedInternal MedicineTaxonomy 207R00000X · License 259852 (MA)

Also ListedOphthalmologyTaxonomy 207W00000X · License 2018-00306 (NC)

200 MALL BLVD, King Of Prussia, PA 19406

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Secondary Practice Location 1

Location 1123 Summer StWorcester, MA 01608-1216 · Phone (508) 363-6208

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ayan Chatterjee 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 ID3476866492

PECOS Enrollment IDI20190805003272, I20190819001912

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.

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.

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

692 services316 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

380 services215 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.

286 services286 patients

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

237 services220 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

210 services205 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

189 services183 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

126 services124 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

84 services77 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.

70 services58 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

62 services46 patients

Dilation of fluid outflow drainage within eye 66174

Dilation to improve eye fluid flow is a process where eye drops are used to widen or dilate your pupils. This allows more fluid to flow out of the eye, reducing pressure and helping to prevent or treat conditions like glaucoma.

45 services24 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

45 services43 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

44 services43 patients

Removal of recurring cataract in lens capsule using a laser 66821

34 services25 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

33 services33 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

26 services21 patients

Laser repair to improve eye fluid flow 65855

Laser repair to improve eye fluid flow is a procedure aimed at treating glaucoma. A laser is used to create a small hole in the eye's drainage system, allowing fluid to flow out more easily. This helps to lower the pressure inside the eye, reducing the risk of vision loss.

21 services14 patients

Incision to improve eye fluid flow 65820

This procedure, known as a trabeculectomy, involves creating a small opening in the eye to improve fluid flow. This can help lower eye pressure in conditions like glaucoma. It's a common, safe procedure to protect your eye health.

20 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wills Eye Hospital

Acute Care Hospitals · Philadelphia, PA

OwnershipVoluntary non-profit - Private

CMS Certification Number390331

Location840 Walnut StreetPhiladelphia, PA 19107 · Philadelphia County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19406 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

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

Established Patient

$74.47 typical visit price

range $19.30 – $147.29

Typical copayment $18.61 (range $4.82 – $36.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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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.

ARIANN DERSHAW BERNSTEIN OD

Optometrist