THOMAS F DAY M.D.
NPI 1356565741
Orthopaedic Surgery in Los Angeles, CA
NPI Status: Active since April 13, 2007
Contact Information
444 S SAN VICENTE BLVD STE 704
LOS ANGELES, CA
ZIP 90048
Phone: (310) 248-7300
Fax: (310) 248-7390
- Individual
- Male
- Years of Experience 21
- Orthopaedic Surgery
- Accepts Medicare Approved Payment
- PECOS Enrolled
About THOMAS DAY
This page provides the complete NPI Profile along with additional information for Thomas Day, a provider established in Los Angeles, California with a medical specialization in Orthopaedic Surgery and more than 21 years of experience. He graduated from Jefferson Medical College Of Thomas Jefferson University in 2005. The healthcare provider is registered in the NPI registry with number 1356565741 assigned on April 2007. The practitioner's primary taxonomy code is 207X00000X with license number A99705 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.
- NPI
- 1356565741
- Provider Name
- THOMAS F DAY M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 444 S SAN VICENTE BLVD STE 704 LOS ANGELES, CA 90048
- Location Phone
- (310) 248-7300
- Location Fax
- (310) 248-7390
- Mailing Address
- 444 S SAN VICENTE BLVD STE 704 LOS ANGELES, CA 90048
- Mailing Phone
- (310) 248-7300
- Mailing Fax
- (310) 248-7390
- Medical School Name
- JEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
- Graduation Year
- 2005
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-13-2007
- Last Update Date
- 11-29-2021
- 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
Orthopaedic Surgery
- Taxonomy Code
- 207X00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A99705
- License State
- CA
- Taxonomy Description
- An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Medicare Participation & PECOS Enrollment Status
Thomas Day 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.
Thomas Day 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: 2567510944
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: I20090423000748
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.
Laminectomy or laminotomy (partial removal of spine bones)
Spinal fusion
A laminectomy or laminotomy is a surgical procedure that involves removing part of the bone in your spine, specifically the lamina, to alleviate pressure on your spinal cord or nerves. This can help reduce pain and improve mobility if you're suffering from conditions like herniated discs or spinal stenosis.
This service was performed for 48 patientsSpinal fusion is a surgical procedure aimed at connecting two or more vertebrae in your spine to reduce pain and improve stability. It involves using a bone graft to cause the vertebrae to grow together, limiting the movement between them. This procedure is often performed to treat conditions like herniated discs or spinal stenosis.
This service was performed for 66 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $24.09 for a new patient copayment and $19.49 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 90048 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $96.36
- Minimum New Patient Price $62.96
- Maximum New Patient Price $187.6
- Average New Patient Copayment $24.09
- Minimum New Patient Copayment $15.74
- Maximum New Patient Copayment $46.9
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $77.96
- Minimum Established Patient Price $20.84
- Maximum Established Patient Price $153.61
- Average Established Patient Copayment $19.49
- Minimum Established Patient Copayment $5.21
- Maximum Established Patient Copayment $38.4
* 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 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 | 3 | 5 | 6 | 5 | 6 | 5 | 7 | 4 | 1 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 3 | 10 | 6 | 10 | 6 | 10 | 7 | 8 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 3 + 1 + 0 + 6 + 1 + 0 + 6 + 1 + 0 + 7 + 8 + 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 1356565741 is valid because the calculated check digit 1 using the Luhn validation algorithm matches the last digit of the original NPI number.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1356565741, enumerated in the NPI registry as an "individual" on April 13, 2007
The provider is located at 444 S San Vicente Blvd Ste 704 Los Angeles, Ca 90048 and the phone number is (310) 248-7300
The provider's speciality is Orthopaedic Surgery with taxonomy code 207X00000X
The provider has more than 21 years of experience. He graduated from Jefferson Medical College Of Thomas Jefferson University in 2005.
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: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $96.36 with an average copayment of $24.09 for new patient appointments. Established patients should expect a typical charge of $77.96 and an average copayment of 19.49. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Laminectomy or laminotomy (partial removal of spine bones) and Spinal fusion.
This NPI record was last updated on April 13, 2007. 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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