ALEXANDER JON CHRISTENSEN MD
NPI 1972129773
General Practice in Saint Louis, MO

NPI Status: Active since June 18, 2020

Contact Information

615 S NEW BALLAS RD
SAINT LOUIS, MO
ZIP 63141
Phone: (314) 251-6062

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  • Individual
  • Male
  • General Practice
  • PECOS Enrolled

About ALEXANDER CHRISTENSEN

This page provides the complete NPI Profile along with additional information for Alexander Christensen, a primary care provider established in Saint Louis, Missouri with a medical specialization in General Practice. The healthcare provider is registered in the NPI registry with number 1972129773 assigned on June 2020. The practitioner's primary taxonomy code is 208D00000X with license number 2022048177 (MO). The provider is registered as an individual and his NPI record was last updated 3 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1972129773
Provider Name
ALEXANDER JON CHRISTENSEN MD
Gender
Male
Entity Type
Individual
Location Address
615 S NEW BALLAS RD SAINT LOUIS, MO 63141
Location Phone
(314) 251-6062
Mailing Address
5572 WATERMAN BLVD APT 1W SAINT LOUIS, MO 63112
Mailing Phone
(309) 339-8325
Is Sole Proprietor?
Yes
Enumeration Date
06-18-2020
Last Update Date
12-28-2022
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A primary care provider (PCP) like Alexander Christensen 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

General Practice

Taxonomy Code
208D00000X
Type
Allopathic & Osteopathic Physicians
License No.
2022048177
License State
MO
Taxonomy Description
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

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)
1207V00000XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology

2020017220 (MO)

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Medicare Participation & PECOS Enrollment Status

Alexander Christensen 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

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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 1972129773, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 4 + 2 + 2 + 2 + 1 + 8 + 7 + 1 + 4 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1972129773.

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615 S NEW BALLAS RD
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615 S NEW BALLAS RD
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Anesthesiology
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
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615 S NEW BALLAS RD
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615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
SAINT LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141
Anesthesiology
615 S NEW BALLAS RD, SJMMC DEPT OF ANES
ST. LOUIS, MO 63141

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972129773, enumerated as an "individual" on June 18, 2020.

The provider is located at 615 S NEW BALLAS RD SAINT LOUIS, MO 63141 and the phone number is (314) 251-6062.

General Practice with taxonomy code 208D00000X.