DR. DAVID T. GREENLEAF M.D.
NPI 1023013257
Orthopaedic Surgery in Portland, ME

NPI Status: Active since June 15, 2005

Contact Information

1601 CONGRESS ST
PORTLAND, ME
ZIP 04102
Phone: (207) 774-5113
Fax: (207) 775-4252

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  • Individual
  • Male
  • Orthopaedic Surgery

About DAVID GREENLEAF

This page provides the complete NPI Profile along with additional information for David Greenleaf, a provider established in Portland, Maine with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1023013257 assigned on June 2005. The practitioner's primary taxonomy code is 207X00000X with license number 010430 (ME). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1023013257
Provider Name
DR. DAVID T. GREENLEAF M.D.
Gender
Male
Entity Type
Individual
Location Address
1601 CONGRESS ST PORTLAND, ME 04102
Location Phone
(207) 774-5113
Location Fax
(207) 775-4252
Mailing Address
1601 CONGRESS ST PORTLAND, ME 04102
Mailing Phone
(207) 774-5113
Mailing Fax
(207) 775-4252
Is Sole Proprietor?
No
Enumeration Date
06-15-2005
Last Update Date
07-08-2007
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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

Orthopaedic Surgery

Taxonomy Code
207X00000X
Type
Allopathic & Osteopathic Physicians
License No.
010430
License State
ME
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.

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
B86765MEDICARE UPIN (02) 
MM8225MEDICARE ID-TYPE UNSPECIFIED (04) 

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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 1023013257, we treat the final digit (7) 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 43. The final step is to find the difference between that total and the next multiple of ten (50 - 43 = 7).

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
2
Doubled → 4
Pos 4
3
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
7
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 2 → 4 0 → 0 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 4 + 3 + 0 + 1 + 6 + 2 + 1 + 0 + 24 = 43

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

The next multiple of ten after 43 is 50. The difference is the calculated check digit.

50 - 43 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1023013257.

Other Providers at the Same Location


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

Physical Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Dentist (General Practice)
1601 CONGRESS ST
PORTLAND, ME 04102
Radiology (Diagnostic Ultrasound)
1601 CONGRESS ST, SUITE 3
PORTLAND, ME 04102
Physical Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Dentist (Oral and Maxillofacial Pathology)
1601 CONGRESS ST
PORTLAND, ME 04102
Orthopaedic Surgery
1601 CONGRESS ST
PORTLAND, ME 04102
Clinic/Center (Rehabilitation)
1601 CONGRESS ST
PORTLAND, ME 04102
Durable Medical Equipment & Medical Supplies
1601 CONGRESS ST
PORTLAND, ME 04102
Dentist (Pediatric Dentistry)
1601 CONGRESS ST
PORTLAND, ME 04102
Dermatology
1601 CONGRESS ST
PORTLAND, ME 04102
Physician Assistant (Surgical)
1601 CONGRESS ST
PORTLAND, ME 04102
Physical Therapist (Pediatrics)
1601 CONGRESS ST
PORTLAND, ME 04102
Physician Assistant
1601 CONGRESS ST
PORTLAND, ME 04102
Speech-Language Pathologist
1601 CONGRESS ST
PORTLAND, ME 04102
Physical Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Occupational Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Physical Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Occupational Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Physical Therapist
1601 CONGRESS ST
PORTLAND, ME 04102
Dermatology (MOHS-Micrographic Surgery)
1601 CONGRESS ST
PORTLAND, ME 04102

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1023013257, enumerated as an "individual" on June 15, 2005.

The provider is located at 1601 CONGRESS ST PORTLAND, ME 04102 and the phone number is (207) 774-5113.

Orthopaedic Surgery with taxonomy code 207X00000X.

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