DR. SAJOT S GREWAL M.D.
NPI 1144230053
Internal Medicine in Corte Madera, CA

Q: What is Sajot Grewal's NPI number?

The NPI number for Sajot Grewal is 1144230053. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Q: What is Sajot Grewal's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Sajot Grewal was last updated on June 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 09, 2006PECOS Enrolled

770 TAMALPAIS DR, SUITE 203, CORTE MADERA, CA 94925(415) 945-8808(415) 945-8818 Get Directions Write a Review

NPPES record last updated: June 2, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Sajot S Grewal M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SAJOT S GREWAL M.D. (NPI 1144230053) is an individual internal medicine provider in Corte Madera, California, licensed in California (A85167) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1997).

NPPES Registry Identity

NPI1144230053

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. SAJOT S GREWALCredential: M.D.

Location Address770 TAMALPAIS DR, SUITE 203Corte Madera, CA 94925-1700

Mailing Address770 Tamalpais Dr, Suite 203Corte Madera, CA 94925-1700 · (415) 945-8808 · Fax (415) 945-8818

Phone(415) 945-8808

Fax(415) 945-8818

Sole ProprietorYes

Medical School CMSRutgers New Jersey Medical SchoolGraduated 1997

Enumeration DateAugust 9, 2006

Last NPPES UpdateJune 2, 2008

✔ NPI 1144230053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A85167

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedPediatricsTaxonomy 208000000X · License A85167 (CA)

770 TAMALPAIS DR, Corte Madera, CA 94925

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Other Identifiers 2

Medicare UPINH47453CA

Medicare PIN00A851671CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sajot S Grewal M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7618942194

PECOS Enrollment IDI20040827001178

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sajot Grewal reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Univ Of California Ucsf

12 mi

Internal Medicine

505 PARNASSUS AVE
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
339 clinicians in this Medicare group

NPI 1124439807 (415) 476-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

1,029 services665 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

686 services416 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

361 services361 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

151 services151 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

150 services150 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

98 services93 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

76 services76 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

73 services73 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

64 services58 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

47 services17 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

34 services12 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

25 services21 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

22 services22 patients

Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report G0403

An Electrocardiogram (ECG) with 12 leads is a non-invasive test that measures the electrical activity of your heart. It's performed during your initial physical examination to screen for heart conditions. The results are interpreted and compiled into a report for further evaluation.

16 services16 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

15 services14 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

13 services13 patients

Removal of impacted ear wax by washing 69209

Impacted ear wax removal by washing, also known as ear irrigation, involves using a pressurized flow of water to break up and dislodge the ear wax. This safe procedure helps restore normal hearing and relieve discomfort caused by the blockage.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94925 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$154.04 typical visit price

range $69.07 – $202.63

Typical copayment $38.51 (range $17.26 – $50.65)

Most-billed visit code 99204

Established Patient

$119.61 typical visit price

range $23.44 – $166.64

Typical copayment $29.90 (range $5.86 – $41.66)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

12 suppliers31 claims86 services$4.70 avg. paid by Medicare

Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352

DME-Orthotic Devices · category DF008N

1 supplier12 claims2,050 services$6.12 avg. paid by Medicare

Lubricant, per ounce A4402

DME-Orthotic Devices · category DF010N

2 suppliers16 claims136 services$1.54 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier11 claims11 services$35.30 avg. paid by Medicare

Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) E0465

DME-Other DME · category DE005N

1 supplier12 claims12 services$907.03 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers13 claims13 services$184.36 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ALFRED DAVID OPPENHEIM M.D.

Internal Medicine

770 TAMALPAIS DR, SUITE 203
CORTE MADERA, CA 94925

Marin County (415) 945-8808

RICHARD EARL SCHMOTTER DDS

Dentist

770 TAMALPAIS DR, 304
CORTE MADERA, CA 94925

Marin County (415) 927-4000

ELIZABETH H LOWE M.D.

Pediatrics

770 TAMALPAIS DR, SUITE 203
CORTE MADERA, CA 94925

Marin County (415) 945-8808

DR. LUISA AMBROSIANO D.D.S.

Dentist (General Practice)

770 TAMALPAIS DR, SUITE #205
CORTE MADERA, CA 94925

Marin County (415) 924-2022

DR. ALISON SMITH M.D.

Surgery

770 TAMALPAIS DR, SUITE 402
CORTE MADERA, CA 94925

Marin County (415) 927-7900

NORTH BAY INTERNAL MEDICINE AND PEDIATRICS

Clinic/Center (Medical Specialty)

770 TAMALPAIS DR, SUITE 203
CORTE MADERA, CA 94925

Marin County (415) 945-8808

HEARINGLIFE HEARING AID CENTER LLC

Clinic/Center (Hearing and Speech)

770 TAMALPAIS DR, STE 264
CORTE MADERA, CA 94925

Marin County (415) 945-9148

DR. ALEXANDER KASHEF DDS, MD

Dentist (Oral and Maxillofacial Surgery)

770 TAMALPAIS DR, SUITE 408
CORTE MADERA, CA 94925

Marin County (475) 924-6939

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sajot Grewal's NPI number?

The NPI number for Sajot Grewal is 1144230053. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Where is Sajot Grewal located?

Sajot Grewal practices at 770 Tamalpais Dr Suite 203, Corte Madera, CA 94925. The listed phone number is (415) 945-8808.

What is Sajot Grewal's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Sajot Grewal enrolled in Medicare?

Yes. Sajot Grewal is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sajot Grewal's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sajot Grewal reassigns Medicare benefits to Regents Univ Of California Ucsf (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sajot Grewal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sajot Grewal was last updated on June 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.