DR. JOHN LESTER SCHAEFFER D.O.
NPI 1497743918
Psychiatry & Neurology - Child & Adolescent Psychiatry in San Francisco, CA

NPI Status: Active since October 10, 2005

Contact Information

101 CALIFORNIA ST STE 2710
SAN FRANCISCO, CA
ZIP 94111
Phone: (916) 320-4222
Fax: (888) 370-2829

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry
  • PECOS Enrolled

About JOHN SCHAEFFER

This page provides the complete NPI Profile along with additional information for John Schaeffer, a provider established in San Francisco, California with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1497743918 assigned on October 2005. The practitioner's primary taxonomy code is 2084P0804X with license number 20A9536 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1497743918
Provider Name
DR. JOHN LESTER SCHAEFFER D.O.
Gender
Male
Entity Type
Individual
Location Address
101 CALIFORNIA ST STE 2710 SAN FRANCISCO, CA 94111
Location Phone
(916) 320-4222
Location Fax
(888) 370-2829
Mailing Address
101 CALIFORNIA ST STE 2710 SAN FRANCISCO, CA 94111
Mailing Phone
(916) 320-4222
Mailing Fax
(888) 370-2829
Is Sole Proprietor?
Yes
Enumeration Date
10-10-2005
Last Update Date
05-04-2020
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Location Map

Secondary Locations

  • 2440 Tulare St Ste 200
    Fresno, CA 93721
    (916) 320-4422
  • 1691 Q St
    Firebaugh, CA 93622
    (916) 320-4422
  • 3133 N Millbrook Ave
    Fresno, CA 93703
    (559) 600-8918
  • 380 Coalinga Plz
    Coalinga, CA 93210
    (855) 343-1057
  • 4441 E Kings Canyon Rd
    Fresno, CA 93702
    (559) 600-9180
  • 36618 Lassen Ave Suite A
    Huron, CA 93234
    (559) 334-6421
  • 681 S Madera Ave Ste 107
    Kerman, CA 93630
    (559) 842-4357
  • 40 E Minarets Ave
    Pinedale, CA 93650
    (855) 343-1057
  • 1311 11th St
    Reedley, CA 93654
    (559) 638-8588
  • 711 Barnes Ave
    LA Junta, CO 81050
    (800) 511-5446
  • 3800 McCall Ave
    Selma, CA 93662
    (559) 875-7705

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

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
20A9536
License State
CA
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

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)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

20A9536 (CA)
22084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

38750 (CO)
32084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

A-1243-03 (NM)
42084P0804XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Child & Adolescent Psychiatry

A-1243-03 (NM)
52084P0804XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Child & Adolescent Psychiatry

38750 (CO)
62084P0805XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Geriatric Psychiatry

A-1243-03 (NM)
72084P0805XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Geriatric Psychiatry

38750 (CO)
82084P0805XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Geriatric Psychiatry

20A9536 (CA)

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
FK534ZMEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

John Schaeffer 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

  • 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

Reviews for DR. JOHN LESTER SCHAEFFER D.O.

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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 1497743918, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
9
Unchanged
Pos 9
1
Doubled → 2
Check
8
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 7 → 14 → 5 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 4 + 4 + 6 + 9 + 2 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1497743918.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497743918, enumerated as an "individual" on October 10, 2005.

The provider is located at 101 CALIFORNIA ST STE 2710 SAN FRANCISCO, CA 94111 and the phone number is (916) 320-4222.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.

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