ROY A HOLLIDAY M.D
NPI 1790732451
Radiology - Radiological Physics in New York, NY
NPI Status: Active since May 28, 2006
Contact Information
310 EAST 14TH STREET
NEW YORK, NY
ZIP 10003
Phone: (212) 979-4400
Fax: (212) 590-2982
- Individual
- Male
- Radiology
- Radiological Physics
- PECOS Enrolled
About ROY HOLLIDAY
This page provides the complete NPI Profile along with additional information for Roy Holliday, a provider established in New York, New York with a medical specialization in Radiology, focusing in radiological physics . The healthcare provider is registered in the NPI registry with number 1790732451 assigned on May 2006. The practitioner's primary taxonomy code is 2085R0205X with license number 156798 (NY). The provider is registered as an individual and his NPI record was last updated 11 years ago.
- NPI
- 1790732451
- Provider Name
- ROY A HOLLIDAY M.D
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 310 EAST 14TH STREET NEW YORK, NY 10003
- Location Phone
- (212) 979-4400
- Location Fax
- (212) 590-2982
- Mailing Address
- 1 GUSTAVE L. LEVY PLACE BOX 1194 NEW YORK, NY 10029
- Mailing Phone
- (212) 241-8395
- Mailing Fax
- (212) 590-2982
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-28-2006
- Last Update Date
- 01-07-2015
- Code Navigator
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
Radiology Radiological Physics
- Taxonomy Code
- 2085R0205X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 156798
- License State
- NY
- Taxonomy Description
- A radiological physicist deals with the diagnostic and therapeutic applications of roentgen rays, gamma rays from sealed sources, ultrasonic radiation and radio-frequency radiation, as well as the equipment associated with their production and use, including radiation safety.
Medicare Participation & PECOS Enrollment Status
Roy Holliday 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: Durable Medical Equipment (DME) 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
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: Yes
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 7 | 9 | 0 | 7 | 3 | 2 | 4 | 5 | 1 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 7 | 18 | 0 | 14 | 3 | 4 | 4 | 10 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 7 + 1 + 8 + 0 + 1 + 4 + 3 + 4 + 4 + 1 + 0 + 24 = 59 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 59 = 1 | 1 | ||||||||
The NPI number 1790732451 is valid because the calculated check digit 1 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1053422972 | SCOTT R HORN MD Individual | Anesthesiology | 310 EAST 14TH STREET NY EYE & EAR INFIRMARY NEW YORK, NY 10003 (212) 979-4000 |
| 1295838563 | EUGENE BARTON KERN M.D. Individual | Specialist | 310 EAST 14TH STREET 6TH FLOOR NEW YORK, NY 10003 (212) 979-4200 |
| 1013011105 | OPHTHALMIC CONSULTANTS CORNEAL AND REFRACTIVE SURGERY ASSOCIATES PC Organization | Ophthalmology | 310 EAST 14TH STREET 2ND FLOOR SOUTH BUILDING NEW YORK, NY 10003 (212) 505-6550 |
| 1821174194 | SHARON CALLENDER CRNA Individual | Nurse Anesthetist, Certified Registered | 310 EAST 14TH STREET NY EYE & EAR INFIRMARY NEW YORK, NY 10003 (212) 979-4000 |
| 1750619425 | DR. SHEILA SANTOS O.D. Individual | Ophthalmology | 310 EAST 14TH STREET OPHTHALMIC CONSULTANTS P.C. NEW YORK, NY 10003 (212) 505-6550 |
| 1851697759 | MARY WIDLICKI PHARMD Individual | Pharmacist | 310 EAST 14TH STREET NEW YORK, NY 10003 (212) 979-4379 |
| 1881964716 | DR. SHARLYN SAVAN PHARM.D., RPH Individual | Pharmacist | 310 EAST 14TH STREET NEW YORK, NY 10003 (212) 979-4380 |
| 1871600510 | PAUL A SIDOTI MD Individual | Ophthalmology | 310 EAST 14TH STREET SUITE 319S NEW YORK, NY 10003 (212) 979-4590 |
| 1942238365 | MARINA ALLEN MD Individual | Anesthesiology | 310 EAST 14TH STREET NY EYE & EAR INFIRMARY NEW YORK, NY 10003 (212) 979-3000 |
| 1811396500 | RACHEL LIPSKY Individual | Physician Assistant | 310 EAST 14TH STREET NEW YORK, NY 10003 (212) 979-4305 |
| 1437538451 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI Organization | Ophthalmology | 310 EAST 14TH STREET NEW YORK, NY 10003 (212) 979-4500 |
| 1144420134 | DR. NEIL DHINGRA MD Individual | Anesthesiology | 310 EAST 14TH STREET NY EYE & EAR INFIRMARY NEW YORK, NY 10003 (212) 979-4000 |
| 1043242530 | JODI S SINGER SASSOON M.D. Individual | Pathology (Anatomic Pathology & Clinical Pathology) | 310 EAST 14TH STREET NEW YORK, NY 10003 (212) 420-2000 |
| 1245251222 | NEW YORK EYE & EAR INFIRMARY Organization | Special Hospital | 310 EAST 14TH STREET NEW YORK CITY, NY 10003 (212) 979-4000 |
| 1912054073 | ERIC B SARPONG CRNA Individual | Nurse Anesthetist, Certified Registered | 310 EAST 14TH STREET NY EYE AND EAR INFIRMARY NEW YORK, NY 10003 (212) 979-4000 |
| 1548655178 | NEW YORK EYE AND EAR INFIRMARY OF MOUNT SINAI Organization | Otolaryngology | 310 EAST 14TH STREET 6TH FLOOR NEW YORK, NY 10003 (212) 979-4200 |
| 1720640501 | VINCENT SUN M.D. Individual | Ophthalmology | 310 EAST 14TH STREET NEW YORK CITY, NY 10003 (514) 927-3187 |
| 1073241196 | BETH ISAEL MEDICAL CENTER Organization | General Acute Care Hospital | 310 EAST 14TH STREET NEW YORK, NY 10003 (646) 605-6201 |
| 1568620300 | TAK YEE TANIA TAI MD Individual | Ophthalmology (Glaucoma Specialist) | 310 EAST 14TH STREET SUITE 319S NEW YORK, NY 10003 (212) 979-4500 |
| 1700843638 | NICOLE H GRAHAM CRNA Individual | Nurse Anesthetist, Certified Registered | 310 EAST 14TH STREET NY EYE & EAR INFIRMARY NEW YORK, NY 10003 (212) 979-4000 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1790732451, enumerated in the NPI registry as an "individual" on May 28, 2006
The provider is located at 310 East 14th Street New York, Ny 10003 and the phone number is (212) 979-4400
The provider's speciality is Radiology with taxonomy code 2085R0205X with a focus in Radiological Physics
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Durable Medical Equipment (DME) and Power Mobility Devices.
This NPI record was last updated on May 28, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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