DR. PATRICIA HALL PEFFER M.D.
NPI 1063550416
Ophthalmology in Worcester, MA

NPI Status: Active since February 01, 2007

Contact Information

281 LINCOLN ST
3RD FLOOR
WORCESTER, MA
ZIP 01605
Phone: (774) 329-9475
Fax: (508) 334-4655

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  • Individual
  • Female
  • Ophthalmology

About PATRICIA PEFFER

This page provides the complete NPI Profile along with additional information for Patricia Peffer, a provider established in Worcester, Massachusetts with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1063550416 assigned on February 2007. The practitioner's primary taxonomy code is 207W00000X with license number 237878 (MA). The provider is registered as an individual and her NPI record was last updated 10 years ago.

NPI
1063550416
Provider Name
DR. PATRICIA HALL PEFFER M.D.
Gender
Female
Entity Type
Individual
Location Address
281 LINCOLN ST 3RD FLOOR WORCESTER, MA 01605
Location Phone
(774) 329-9475
Location Fax
(508) 334-4655
Mailing Address
PO BOX 415348 BOSTON, MA 02241
Mailing Phone
(800) 225-8885
Mailing Fax
(508) 334-4655
Is Sole Proprietor?
No
Enumeration Date
02-01-2007
Last Update Date
03-18-2016
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Ophthalmologists like Patricia Peffer 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.
237878
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.

*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
1919781MEDICAID (05)LA 
E80816MEDICARE UPIN (02)LA 
110088395AMEDICAID (05)MA 
002118201MEDICARE PIN (08)MA 

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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 1063550416, 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 44. The final step is to find the difference between that total and the next multiple of ten (50 - 44 = 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
0
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
1
Doubled → 2
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 6 → 12 → 3 5 → 10 → 1 0 → 0 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 2 + 3 + 1 + 0 + 5 + 0 + 4 + 2 + 24 = 44

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

The next multiple of ten after 44 is 50. The difference is the calculated check digit.

50 - 44 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1063550416.

Other Providers at the Same Location


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

Dermatology
281 LINCOLN ST, DEPARTMENT OF DERMATOLOGY
WORCESTER, MA 01605
Nurse Practitioner
281 LINCOLN ST, DEPARTMENT OF ORTHOPEDICS
WORCESTER, MA 01605
Nurse Practitioner
281 LINCOLN ST
WORCESTER, MA 01605
Nurse Practitioner
281 LINCOLN ST, PRE ADMISSION TESTING
WORCESTER, MA 01605
Orthopaedic Surgery
281 LINCOLN ST
WORCESTER, MA 01605
Nurse Practitioner
281 LINCOLN ST, EICU
WORCESTER, MA 01605
Nurse Anesthetist, Certified Registered
281 LINCOLN ST, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01605
Nurse Anesthetist, Certified Registered
281 LINCOLN ST, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01605
Physician Assistant
281 LINCOLN ST, DEPARTMENT OF DERMATOLOGY
WORCESTER, MA 01605
Family Medicine
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Internal Medicine
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Internal Medicine (Infectious Disease)
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Internal Medicine
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Pediatrics
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Pediatrics
281 LINCOLN ST, MED STAFF SVCS
WORCESTER, MA 01605
Emergency Medicine
281 LINCOLN ST, MED STAFF SVCS
WORCESTER, MA 01605
Internal Medicine
281 LINCOLN ST, MED STAFF SVCS
WORCESTER, MA 01605
Orthopaedic Surgery
281 LINCOLN ST, MED STAFF SVCS
WORCESTER, MA 01605
Pathology (Anatomic Pathology)
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Internal Medicine
281 LINCOLN ST, MED STAFF SVCS
WORCESTER, MA 01605

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1063550416, enumerated as an "individual" on February 01, 2007.

The provider is located at 281 LINCOLN ST 3RD FLOOR WORCESTER, MA 01605 and the phone number is (774) 329-9475.

Ophthalmology with taxonomy code 207W00000X.

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