SIMA SPECIALITY MEDICINE PLLC
NPI 1780549444
Internal Medicine - Geriatric Medicine in Reading, PA

NPI Status: Active since December 16, 2025

Contact Information

1623 MORGANTOWN RD
READING, PA
ZIP 19607
Phone: (802) 735-0001

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  • Organization
  • Internal Medicine
  • Geriatric Medicine

About SIMA SPECIALITY MEDICINE PLLC

This page provides the complete NPI Profile along with additional information for Sima Speciality Medicine Pllc, an internist established in Reading, Pennsylvania operating as a Internal Medicine, focusing in geriatric medicine . The healthcare provider is registered in the NPI registry with number 1780549444 assigned on December 2025. The practitioner's primary taxonomy code is 207RG0300X. The provider is registered as an organization and their NPI record was last updated March 2026. Sima Speciality Medicine Pllc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Sasikumar Katamreddy Md (Owner)

NPI
1780549444
Provider Name
SIMA SPECIALITY MEDICINE PLLC
Entity Type
Organization
Location Address
1623 MORGANTOWN RD READING, PA 19607
Location Phone
(802) 735-0001
Mailing Address
801 SPRINGDALE DR STE 100N EXTON, PA 19341
Mailing Phone
(802) 735-0001
Mailing Fax
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-16-2025
Last Update Date
03-23-2026
Code Navigator

An internist like Sima Speciality Medicine Pllc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

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

Internal Medicine Geriatric Medicine

Taxonomy Code
207RG0300X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1163WW0000XNursing Service Providers

Registered Nurse
Wound Care

 
2207PE0005XAllopathic & Osteopathic Physicians

Emergency Medicine
Undersea and Hyperbaric Medicine

 
3207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

 
4208000000XAllopathic & Osteopathic Physicians

Pediatrics

 
52086S0105XAllopathic & Osteopathic Physicians

Surgery
Surgery of the Hand

 
6363A00000XPhysician Assistants & Advanced Practice Nursing Providers

Physician Assistant

 
7363L00000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

SASIKUMAR KATAMREDDY MD

Authorized Official Title
OWNER
Authorized Official Phone
(914) 414-2575

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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 1780549444, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
7
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
0
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
4
Doubled → 8
Check
4
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 8 → 16 → 7 5 → 10 → 1 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 6 + 0 + 1 + 0 + 4 + 1 + 8 + 4 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1780549444.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Occupational Therapist
1623 MORGANTOWN RD
READING, PA 19607
Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Internal Medicine
1623 MORGANTOWN RD
READING, PA 19607
Clinical Neuropsychologist
1623 MORGANTOWN RD
READING, PA 19607
Family Medicine
1623 MORGANTOWN RD
READING, PA 19607
Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Clinic/Center (Rehabilitation)
1623 MORGANTOWN RD
READING, PA 19607
Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Occupational Therapist
1623 MORGANTOWN RD
READING, PA 19607
Internal Medicine
1623 MORGANTOWN RD
READING, PA 19607
Physical Medicine & Rehabilitation
1623 MORGANTOWN RD
READING, PA 19607
Psychologist (Clinical)
1623 MORGANTOWN RD, HEALTHSOUTH READING REHABILITATION HOSPITAL
READING, PA 19607
Rehabilitation Hospital
1623 MORGANTOWN RD
READING, PA 19607
Internal Medicine
1623 MORGANTOWN RD
READING, PA 19607
Internal Medicine
1623 MORGANTOWN RD
READING, PA 19607

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1780549444, enumerated as an "organization" on December 16, 2025.

The provider is located at 1623 MORGANTOWN RD READING, PA 19607 and the phone number is (802) 735-0001.

Internal Medicine with taxonomy code 207RG0300X and a focus in Geriatric Medicine.