CHESTER WILLIAM ZARNOCH JR. MD
NPI 1508940586
Ophthalmology in Hingham, MA

NPI Status: Active since October 25, 2006

Contact Information

175 DERBY ST
SUITE 38A
HINGHAM, MA
ZIP 02043
Phone: (781) 749-2050
Fax: (781) 749-2125

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  • Individual
  • Male
  • Years of Experience 53
  • Ophthalmology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About CHESTER ZARNOCH

This page provides the complete NPI Profile along with additional information for Chester Zarnoch, a provider established in Hingham, Massachusetts with a medical specialization in Ophthalmology and more than 53 years of experience. He graduated from Boston University School Of Medicine in 1973. The healthcare provider is registered in the NPI registry with number 1508940586 assigned on October 2006. The practitioner's primary taxonomy code is 207W00000X with license number 36793 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1508940586
Provider Name
CHESTER WILLIAM ZARNOCH JR. MD
Gender
Male
Entity Type
Individual
Location Address
175 DERBY ST SUITE 38A HINGHAM, MA 02043
Location Phone
(781) 749-2050
Location Fax
(781) 749-2125
Mailing Address
175 DERBY ST SUITE 38A HINGHAM, MA 02043
Mailing Phone
(781) 749-2050
Mailing Fax
(781) 749-2125
Medical School Name
BOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
1973
Is Sole Proprietor?
Yes
Enumeration Date
10-25-2006
Last Update Date
07-08-2007
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Ophthalmologists like Chester Zarnoch specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
36793
License State
MA
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
A66993MEDICARE UPIN (02) 
M09681OTHER (01)MABCBS
M21118MEDICARE ID-TYPE UNSPECIFIED (04) 

Medicare Participation & PECOS Enrollment Status

Chester Zarnoch is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Chester Zarnoch is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 749184398

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20041012000731

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient complete exam of visual system

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.

This service was performed 161 times for 161 patients

Established patient problem focused exam of visual system

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.

This service was performed 163 times for 105 patients

Extended exam of the back part of the eye with retinal drawing

This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.

This service was performed 34 times for 33 patients

New patient complete exam of visual system

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

This service was performed 20 times for 20 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $33.61 for a new patient copayment and $18.3 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 02043 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $134.47
  • Minimum New Patient Price $58.86
  • Maximum New Patient Price $177.36
  • Average New Patient Copayment $33.61
  • Minimum New Patient Copayment $14.71
  • Maximum New Patient Copayment $44.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $73.22
  • Minimum Established Patient Price $19.11
  • Maximum Established Patient Price $144.84
  • Average Established Patient Copayment $18.3
  • Minimum Established Patient Copayment $4.77
  • Maximum Established Patient Copayment $36.21

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1508940586, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
6
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 9 → 18 → 9 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 0 + 8 + 1 + 8 + 4 + 0 + 5 + 1 + 6 + 24 = 64

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1508940586.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Dentist (Periodontics)
175 DERBY ST, SUITE #11
HINGHAM, MA 02043
Psychologist (Clinical)
175 DERBY ST
HINGHAM, MA 02043
Psychologist (Clinical)
175 DERBY ST, SUITE 10
HINGHAM, MA 02043
Psychologist (Clinical)
175 DERBY ST, SUITE 2
HINGHAM, MA 02043
Clinical Nurse Specialist (Psychiatric/Mental Health)
175 DERBY ST, UNIT 2
HINGHAM, MA 02043
Psychologist (Clinical Child & Adolescent)
175 DERBY ST, SUITE 16
HINGHAM, MA 02043
Social Worker (Clinical)
175 DERBY ST, SUITE 2
HINGHAM, MA 02043
Social Worker (Clinical)
175 DERBY ST, UNIT 2
HINGHAM, MA 02043
Psychologist (Clinical)
175 DERBY ST, SUITE 10
HINGHAM, MA 02043
Counselor (Professional)
175 DERBY ST, SUITE 10
HINGHAM, MA 02043
Social Worker (Clinical)
175 DERBY ST, SUITE 2
HINGHAM, MA 02043
Social Worker (Clinical)
175 DERBY ST
HINGHAM, MA 02043
Dentist
175 DERBY ST, UNIT 34
HINGHAM, MA 02043
Ophthalmology
175 DERBY ST, SUITE 38
HINGHAM, MA 02043
Social Worker (Clinical)
175 DERBY ST, STE. 16
HINGHAM, MA 02043
Psychologist (Clinical)
175 DERBY ST, STE 21-22
HINGHAM, MA 02043
Nurse Practitioner (Psychiatric/Mental Health)
175 DERBY ST, SUITE 21
HINGHAM, MA 02043
Counselor (Mental Health)
175 DERBY ST, STE 2
HINGHAM, MA 02043
Psychiatry & Neurology (Psychiatry)
175 DERBY ST, SUITE 21-22
HINGHAM, MA 02043
Clinic/Center (Mental Health (Including Community Mental Health Center))
175 DERBY ST, 22
HINGHAM, MA 02043

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508940586, enumerated as an "individual" on October 25, 2006.

The provider is located at 175 DERBY ST SUITE 38A HINGHAM, MA 02043 and the phone number is (781) 749-2050.

Ophthalmology with taxonomy code 207W00000X.

The provider might be accepting Accepts: Medicare, Medicaid and Blue Cross Blue Shield. Please consult your insurance carrier or call the provider to verify.