DR. JOHN NATHANIEL DIEHL MD, PHD
NPI 1194428177
Student in an Organized Health Care Education/Training Program in Philadelphia, PA

NPI Status: Active since March 27, 2023

Contact Information

3400 SPRUCE ST
PHILADELPHIA, PA
ZIP 19104
Phone: (610) 955-8796

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  • Individual
  • Male
  • Student in an Organized Health Care Educ...

About JOHN DIEHL

This page provides the complete NPI Profile along with additional information for John Diehl, a primary care provider established in Philadelphia, Pennsylvania with a medical specialization in Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1194428177 assigned on March 2023. The practitioner's primary taxonomy code is 390200000X. The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1194428177
Provider Name
DR. JOHN NATHANIEL DIEHL MD, PHD
Gender
Male
Entity Type
Individual
Location Address
3400 SPRUCE ST PHILADELPHIA, PA 19104
Location Phone
(610) 955-8796
Mailing Address
3400 SPRUCE ST PHILADELPHIA, PA 19104
Mailing Phone
(610) 955-8796
Is Sole Proprietor?
No
Enumeration Date
03-27-2023
Last Update Date
03-27-2023
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A primary care provider (PCP) like John Diehl sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Student in an Organized Health Care Education/Training Program

Taxonomy Code
390200000X
Type
Student, Health Care
Taxonomy Description
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Reviews for DR. JOHN NATHANIEL DIEHL MD, PHD

  • 5 out of 5 stars - Review by Amanda ***** on May 29, 2024

    He took care of my mother and was an amazing doctor! He cares deeply about his patients and we really enjoyed working with him. Would highly recommend!

  • 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 1194428177, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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
    1
    Unchanged
    Pos 3
    9
    Doubled → 18 → 1 + 8
    Pos 4
    4
    Unchanged
    Pos 5
    4
    Doubled → 8
    Pos 6
    2
    Unchanged
    Pos 7
    8
    Doubled → 16 → 1 + 6
    Pos 8
    1
    Unchanged
    Pos 9
    7
    Doubled → 14 → 1 + 4
    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 9 → 18 → 9 4 → 8 8 → 16 → 7 7 → 14 → 5

    Step 2: Add all digits plus the NPI constant

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

    2 + 1 + 1 + 8 + 4 + 8 + 2 + 1 + 6 + 1 + 1 + 4 + 24 = 63

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

    The next multiple of ten after 63 is 70. The difference is the calculated check digit.

    70 - 63 = 7
    This NPI is valid
    The calculated check digit is 7, which matches the last digit of 1194428177.

    Other Providers at the Same Location


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

    Anesthesiology
    3400 SPRUCE ST, 6 DULLES
    PHILADELPHIA, PA 19104
    Anesthesiology (Pain Medicine)
    3400 SPRUCE ST, HUP-DULLES 6, ANESTHESIOLOGY DEPT
    PHILADELPHIA, PA 19104
    Genetic Counselor, MS
    3400 SPRUCE ST, 535 MALONEY BLDG
    PHILADELPHIA, PA 19104
    Genetic Counselor, MS
    3400 SPRUCE ST, 2007 PENN TOWER
    PHILADELPHIA, PA 19104
    Nurse Practitioner (Adult Health)
    3400 SPRUCE ST, GOUND FLOOR SILVERSTEIN
    PHILADELPHIA, PA 19104
    Genetic Counselor, MS
    3400 SPRUCE ST, ROOM 538 MALONEY BUILDING
    PHILADELPHIA, PA 19104
    Radiology (Radiation Oncology)
    3400 SPRUCE ST
    PHILADELPHIA, PA 19104
    Psychiatry & Neurology (Psychiatry)
    3400 SPRUCE ST, 2016 PENN TOWER
    PHILADELPHIA, PA 19104
    Internal Medicine (Infectious Disease)
    3400 SPRUCE ST, 3 SILVERSTEIN
    PHILADELPHIA, PA 19104
    Radiology (Radiation Oncology)
    3400 SPRUCE ST, 2 DONNER BUILDING
    PHILADELPHIA, PA 19104
    Emergency Medicine
    3400 SPRUCE ST, GROUND SILVER STE N BLDG
    PHILADELPHIA, PA 19104
    Internal Medicine (Medical Oncology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104
    Anesthesiology
    3400 SPRUCE ST, 4 DULLES BUILDING
    PHILADELPHIA, PA 19104
    Internal Medicine (Hematology & Oncology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104
    Internal Medicine (Medical Oncology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104
    Pathology (Anatomic Pathology & Clinical Pathology)
    3400 SPRUCE ST
    PHILADELPHIA, PA 19104
    Internal Medicine (Hematology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104
    Internal Medicine (Medical Oncology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104
    Internal Medicine (Hematology & Oncology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104
    Internal Medicine (Hematology & Oncology)
    3400 SPRUCE ST, 15 PENN TOWER
    PHILADELPHIA, PA 19104

    Frequently Asked Questions

    The NPI number assigned to this healthcare provider is 1194428177, enumerated as an "individual" on March 27, 2023.

    The provider is located at 3400 SPRUCE ST PHILADELPHIA, PA 19104 and the phone number is (610) 955-8796.

    Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.