DR. ALEXANDER LINDEN CLARKE MBBS FANZCA
NPI 1811651219
Anesthesiology in San Francisco, CA

NPI Status: Active since October 22, 2021

Contact Information

500 PARNASSUS AVE
SAN FRANCISCO, CA
ZIP 94143
Phone: (415) 476-1000

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  • Individual
  • Male
  • Anesthesiology
  • PECOS Enrolled

About ALEXANDER CLARKE

This page provides the complete NPI Profile along with additional information for Alexander Clarke, an anesthesiologist established in San Francisco, California with a medical specialization in Anesthesiology. The healthcare provider is registered in the NPI registry with number 1811651219 assigned on October 2021. The practitioner's primary taxonomy code is 207L00000X with license number SPI688 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1811651219
Provider Name
DR. ALEXANDER LINDEN CLARKE MBBS FANZCA
Gender
Male
Entity Type
Individual
Location Address
500 PARNASSUS AVE SAN FRANCISCO, CA 94143
Location Phone
(415) 476-1000
Mailing Address
2130 POST ST APT 302 SAN FRANCISCO, CA 94115
Mailing Phone
(415) 341-5379
Is Sole Proprietor?
No
Enumeration Date
10-22-2021
Last Update Date
10-22-2021
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An anesthesiologist like Alexander Clarke manages the care of surgical patients and pain relief through drug administration that reduces or eliminates pain during an operation, medical procedure or during labor and delivery of babies. During surgical procedures anesthesiologists are responsible for adjusting the amount of anesthetic, monitoring the patient's heart rate, body temperature, blood pressure and breathing.

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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

Anesthesiology

Taxonomy Code
207L00000X
Type
Allopathic & Osteopathic Physicians
License No.
SPI688
License State
CA
Taxonomy Description
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Medicare Participation & PECOS Enrollment Status

Alexander Clarke 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

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.

Anesthesia for extensive surgery on spine

Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.

This service was performed 11 times for 11 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

This service was performed 16 times for 16 patients

Anesthesia for other procedure on skin of arms, legs, and front body

Anesthesia for procedures on the skin of your arms, legs, and front body is a service that numbs the area being treated. This ensures you don't feel pain during procedures like biopsies, stitches, or minor surgeries. It's administered through a small injection or a topical cream.

This service was performed 11 times for 11 patients

Insertion of artery tube for blood sampling or infusion through skin

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

This service was performed 32 times for 30 patients

Reviews for DR. ALEXANDER LINDEN CLARKE MBBS FANZCA

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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 1811651219, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
8
Unchanged
Pos 3
1
Doubled → 2
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
1
Doubled → 2
Check
9
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 1 → 2 6 → 12 → 3 1 → 2 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 1 + 2 + 5 + 2 + 2 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1811651219.

Other Providers at the Same Location


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

Neurological Surgery
500 PARNASSUS AVE, 8TH FLOOR
SAN FRANCISCO, CA 94143
Pediatrics
500 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Internal Medicine
500 PARNASSUS AVE, MUH-005 BOX 0722
SAN FRANCISCO, CA 94143
Pediatrics
500 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Nurse Practitioner (Pediatrics)
500 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Pediatrics
500 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Registered Nurse (Critical Care Medicine)
500 PARNASSUS AVE, MU 4TH FLOOR EAST TOWER
SAN FRANCISCO, CA 94143
Physician Assistant (Surgical)
500 PARNASSUS AVE, MU WEST, MU-405, BOX 0118
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Psychiatry)
500 PARNASSUS AVE, MU, H-005, BOX 0722
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Psychiatry)
500 PARNASSUS AVE, ROOM MU-H005
SAN FRANCISCO, CA 94143
Orthopaedic Surgery
500 PARNASSUS AVE, BOX 0728
SAN FRANCISCO, CA 94143
Orthopaedic Surgery
500 PARNASSUS AVE, MU320-WEST
SAN FRANCISCO, CA 94143
Internal Medicine
500 PARNASSUS AVE, MU-H005
SAN FRANCISCO, CA 94143
Nurse Practitioner (Family)
500 PARNASSUS AVE, MU-H005
SAN FRANCISCO, CA 94143
Special Hospital
500 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Nurse Practitioner
500 PARNASSUS AVE, MU EAST, ROOM 437
SAN FRANCISCO, CA 94143
Pediatrics (Pediatric Gastroenterology)
500 PARNASSUS AVE, MU4E
SAN FRANCISCO, CA 94143
Thoracic Surgery (Cardiothoracic Vascular Surgery)
500 PARNASSUS AVE, MU-405 W, BOX 0118
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
500 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Occupational Therapist (Feeding, Eating & Swallowing)
500 PARNASSUS AVE, I LEVEL RM. MU-09
SAN FRANCISCO, CA 94143

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811651219, enumerated as an "individual" on October 22, 2021.

The provider is located at 500 PARNASSUS AVE SAN FRANCISCO, CA 94143 and the phone number is (415) 476-1000.

Anesthesiology with taxonomy code 207L00000X.