Dr. Sanjay K. Nigam, MD

  • Maryville, IL
  • Psychiatrist
NPI1942278973PAC ID1658362504
Medicare services, 2024
579
Medicare patients, 2024
111
Part D claims, 2024
4,270
Publications
72
Clinical trials
1
Practice address
6805 State Route 162, Maryville, IL 62062
Practice phone
Call (618) 288-5019
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Psychiatric Walk-In Clinic

Urgent Care Center · Maryville, Illinois

See all 5 affiliations

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Dr. Sanjay K. Nigam is a psychiatrist in Maryville, Illinois

Dr. Nigam practices at Psychiatric Walk-In Clinic in Maryville, Illinois.

Dr. Nigam's NPI, 1942278973, was assigned on March 8, 2006. Dr. Nigam holds Illinois license 036107024.

NPI and contact details
Medicare PAC ID
1658362504
NPI enumeration date
March 8, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(618) 288-5019
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Sanjay K. Nigam practices at Psychiatric Walk-in Clinic in Maryville, Illinois

Dr. Nigam's primary practice is Psychiatric Walk-in Clinic, at 6805 State Route 162, Maryville, IL 62062. The practice phone is (618) 288-5019.

  • Psychiatric Walk-in Clinic
    6805 State Route 162, Maryville, IL 62062Phone(618) 288-5019

Source: Dmand AI Affiliation Data

Dr. Sanjay K. Nigam is affiliated with 4 sites of care and 1 medical group

Dr. Nigam's primary practice is Psychiatric Walk-In Clinic in Maryville, Illinois. Dr. Nigam is also affiliated with Memorial Hospital in Belleville. The medical group on file is Southern Illinois Associates, LLC. Dmand AI also links Dr. Nigam to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Nigam's employer is on file too: an urgent care center.

See all 5 affiliations for Dr. Nigam

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Sanjay K. Nigam's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nigam practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Psychiatric Walk-In ClinicAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Sanjay K. Nigam is one of 1,527 psychiatrists in Illinois

Psychiatry is Dr. Nigam's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Nigam is licensed in Illinois.

Specialties and state licenses

  • Psychiatry, IllinoisPrimaryLicense 036107024 · taxonomy 2084P0800X

Psychiatrists near Dr. Nigam

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

1,527psychiatrists in Illinois
2psychiatrists in Maryville

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Sanjay K. Nigam billed Medicare for 579 services in 2024

CMS data shows 579 Medicare services from Dr. Nigam across 6 procedure codes in 2024, for 111 Medicare patients. Medicare paid $33,929 for them. Every service was in an office.

Medicare services, 2024579
Medicare patients111
Paid by Medicare$33,929
Procedure codes6

Dr. Nigam's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4262024: 25640%
Tests and treatments
2023: 3092024: 19138%
Other services
2023: 02024: 99
Lab and pathology
2023: 932024: 3365%

Dr. Nigam compared with the Illinois median for psychiatrists, 2024

  • Dr. Nigam
  • Illinois median
Medicare services
579vs 2032.9 times
Medicare patients
111vs 6376% above
Part D claims
4,092vs 17423.5 times

Medians across 1,588 psychiatrists in Illinois with Dmand AI profiles that report each measure.

Dr. Nigam's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Sanjay K. Nigam treated 111 Medicare patients in 2024, average age 67

CMS counts 111 Medicare patients who saw Dr. Nigam in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have anxiety, and 75% have depression. 20% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Nigam's median patient age at 44, with 58% women.

Medicare patients, 2024111
Average age67
Average risk score1.34
Also on Medicaid20%

Dr. Nigam's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Nigam's Medicare patients by sex, 2024

  • Women6962%
  • Men4238%

Chronic conditions among Dr. Nigam's Medicare patients, 2024

  1. Anxiety75%
  2. Depression75%
  3. High cholesterol75%
  4. Mood disorders75%
  5. High blood pressure72%
  6. Arthritis46%
  7. Diabetes28%
  8. Chronic kidney disease26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Nigam's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 44

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Sanjay K. Nigam wrote 4,270 Medicare Part D claims in 2024

In 2024, Dr. Nigam wrote 4,270 Medicare Part D claims for 311 patients. 94% of them were for generic drugs. CMS names the drug for 4,092 of them, across 59 drugs with 11 or more claims each, at $512,125 in total drug cost. In 2023, CMS named 5,175 claims across 61 drugs.

Part D claims, 20244,270
Drugs named by CMS59
Total drug cost$512,125
Part D patients311

Dr. Nigam's Part D claims by kind of drug, 2024

  • Generic4,005 claims94%
  • Brand-name265 claims6%

Dr. Nigam's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Nigam's Part D claims, 2024

  • Antipsychotics, patients 65 and over11%489 of 4,270 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 5,1752024: 4,09221%

Drugs named by CMS: 59 in 2024, 61 in 2023.

See all prescribing by Dr. Nigam

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Sanjay K. Nigam offers telehealth to Medicare patients

Dr. Nigam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nigam as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Sanjay K. Nigam has 72 publications on record

Dmand AI links 72 papers to Dr. Nigam, published from 2008 to 2025. 2020 was the busiest year, with 6. The most frequent topics are Kidney, Biological Transport and Organic Anion Transport Protein 1. Dr. Nigam has published most often in Clin Pharmacol Ther. Dr. Nigam's most frequent co-authors are Satish Abraham Eraly, MD/PHD, Gabriel George Haddad, MD and Shailendra K. Saxena, MD.

Papers72
Years published2008 to 2025

Dr. Nigam's papers by year, 2016 to 2025

Topics Dr. Nigam writes about most

  • Kidney
  • Biological Transport
  • Organic Anion Transport Protein 1
  • Organic Anion Transporters
  • Signal Transduction
  • Organic Anion Transporters, Sodium-Independent
  • Membrane Transport Proteins
  • Mice, Knockout

Dr. Nigam's most frequent co-authors

Recent publications by Dr. Nigam

See all 72 publications and co-authors

See who Dr. Nigam researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nigam works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Sanjay K. Nigam has worked on 1 clinical trial

Dmand AI links Dr. Nigam to 1 clinical trial. Conditions studied include Delusions and Hallucinations. Open Payments lists research payments to Dr. Nigam that name 1 trial.

Conditions in Dr. Nigam's trials

  • Delusions
  • Hallucinations

Investigators on the most trials with Dr. Nigam

Recent clinical trials with Dr. Nigam

Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Sanjay K. Nigam received $110,646 in industry payments from 2016 to 2025

CMS Open Payments shows 760 general payments to Dr. Nigam from 36 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 59% of the total. Janssen Pharmaceuticals, Inc paid the most, $70,911. It also lists 6 research payments totaling $11,500 from 2019 to 2021, naming 1 clinical trial.

General payments to Dr. Nigam by program year, 2016 to 2025

General payments to Dr. Nigam by kind, 2016 to 2025

$110.6Kin total
  • Speaker and faculty fees$65,25559%
  • Consulting fees$21,66520%
  • Food and beverage$12,56111%
  • Travel and lodging$10,91810%
  • Education$2470%

Companies that paid Dr. Nigam the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Nigam

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Sanjay K. Nigam's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Sanjay K. Nigam

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Sanjay K. Nigam's NPI number?

Dr. Sanjay K. Nigam's NPI number is 1942278973. It was assigned on March 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Sanjay K. Nigam?

Dr. Sanjay K. Nigam is a psychiatrist in Maryville, Illinois. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Sanjay K. Nigam practice?

Dr. Nigam practices at 6805 State Route 162, Maryville, IL 62062. Dr. Nigam's primary practice is Psychiatric Walk-In Clinic in Maryville, Illinois. Dmand AI also links Dr. Nigam to 1 hospital and 1 group practice or clinic.

What is Dr. Sanjay K. Nigam's office phone number?

The practice phone on file for Dr. Nigam is (618) 288-5019.

What is Dr. Sanjay K. Nigam's medical license number?

Dr. Nigam holds Illinois license 036107024.

Which hospitals is Dr. Sanjay K. Nigam affiliated with?

Dr. Nigam is affiliated with Memorial Hospital in Belleville. Dmand AI links Dr. Nigam to 1 more hospital.

What medical group is Dr. Sanjay K. Nigam part of?

Dr. Nigam is linked to Southern Illinois Associates, LLC.

Does Dr. Sanjay K. Nigam accept Medicare?

Yes. CMS data shows Dr. Nigam billed Medicare for 579 services in 2024, and Dr. Nigam accepts Medicare assignment.

Does Dr. Sanjay K. Nigam offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Nigam as offering telehealth services.

How many Medicare patients does Dr. Sanjay K. Nigam see?

CMS counts 111 Medicare patients who saw Dr. Nigam in 2024, with an average age of 67.

Show 6 more questionsShow fewer questions

What services does Dr. Sanjay K. Nigam bill to Medicare?

In 2024, Dr. Nigam's most billed Medicare services were office visit, established patient (99214), health assessment (96127) and medicare service (G2211).

What drugs does Dr. Sanjay K. Nigam prescribe most?

In 2024 Medicare Part D data, Dr. Nigam's most prescribed drugs by claims were Quetiapine Fumarate, Sertraline HCl and Duloxetine HCl.

Has Dr. Sanjay K. Nigam received payments from drug or device companies?

CMS Open Payments shows $110,646 in general payments to Dr. Nigam from 36 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Sanjay K. Nigam been practicing?

Dr. Nigam graduated from medical school in 1990, 36 years ago.

Does Dr. Sanjay K. Nigam do research?

Dmand AI links 72 publications to Dr. Nigam, published from 2008 to 2025. Dr. Nigam has worked on 1 clinical trial.

Who does Dr. Sanjay K. Nigam publish with?

Dr. Nigam's most frequent co-authors are Satish Abraham Eraly, MD/PHD (4 shared papers), Gabriel George Haddad, MD (2 shared papers) and Shailendra K. Saxena, MD (2 shared papers).

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