Shayan Siddiqui

  • Rockville, MD
  • Internist
NPI1366896243PAC ID4688967243
Medicare services, 2024
1,414
Medicare patients, 2024
404
Part D claims, 2024
172
Hospital affiliations
1
Industry payments
$258
Practice address
9901 Medical Center Dr, Rockville, MD 20850
Practice phone
Call (301) 279-6155
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Shady Grove Adventist Hospital

Rockville, Maryland

See all 4 affiliations

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Shayan Siddiqui is an internist in Rockville, Maryland

Shayan Siddiqui practices at Shady Grove Adventist Hospital in Rockville, Maryland.

Shayan Siddiqui's NPI, 1366896243, was assigned on April 18, 2016. Shayan Siddiqui holds Maryland license D0087870.

NPI and contact details
Medicare PAC ID
4688967243
NPI enumeration date
April 18, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(301) 279-6155
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
44
Medical school graduation
2008

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

Shayan Siddiqui practices at Shady Grove Adventist Hospital in Rockville, Maryland

Shayan Siddiqui's primary practice is Shady Grove Adventist Hospital, at 9901 Medical Center Dr, Rockville, MD 20850 in Montgomery County. The practice phone is (301) 279-6155.

  • Shady Grove Adventist Hospital
    9901 Medical Center Dr, Rockville, MD 20850 · Montgomery CountyPhone(301) 279-6155

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Shayan Siddiqui is affiliated with 2 sites of care and 2 medical groups

Shayan Siddiqui's primary practice is Shady Grove Adventist Hospital in Rockville, Maryland. Shayan Siddiqui is also affiliated with Adventist HealthCare Shady Grove Medical Center. The medical group on file is US Acute Care Solutions (USACS). Dmand AI also links Shayan Siddiqui to 1 more medical group, named with a free account.

See all 4 affiliations for Shayan Siddiqui

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Shayan Siddiqui's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Shayan Siddiqui practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Shady Grove Adventist HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Shayan Siddiqui is one of 3,320 internists in Maryland

Internal medicine is Shayan Siddiqui's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Shayan Siddiqui's licenses on file in 2 states: Maryland and Texas.

Specialties and state licenses

  • Internal medicine, MarylandPrimaryLicense D0087870 · taxonomy 207R00000X
  • Texas licenseLicense S0987

Internists near Shayan Siddiqui

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

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

Shayan Siddiqui billed Medicare for 1,414 services in 2024

CMS data shows 1,414 Medicare services from Shayan Siddiqui across 5 procedure codes in 2024, for 404 Medicare patients. Medicare paid $115,771 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,414
Medicare patients404
Paid by Medicare$115,771
Procedure codes5

Shayan Siddiqui's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,3682024: 1,4143%

Shayan Siddiqui compared with the Maryland median for internists, 2024

  • Shayan Siddiqui
  • Maryland median
Medicare services
1,414vs 6562.2 times
Medicare patients
404vs 25161% above
Part D claims
25vs 30992% below

Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.

Shayan Siddiqui'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.

See all procedures by Shayan Siddiqui

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Medicare shows one payer. Book a meeting to get commercial claims data for Shayan Siddiqui and other internists in Maryland.

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

Shayan Siddiqui treated 404 Medicare patients in 2024, average age 78

CMS counts 404 Medicare patients who saw Shayan Siddiqui in 2024. The largest group is 75 to 84, with 157 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 2.29, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Shayan Siddiqui's median patient age at 70, with 52% women.

Medicare patients, 2024404
Average age78
Average risk score2.29
Also on Medicaid26%

Shayan Siddiqui's Medicare patients by age, 2024

Shayan Siddiqui's Medicare patients by sex, 2024

  • Women22355%
  • Men18145%

Chronic conditions among Shayan Siddiqui's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis58%
  4. Diabetes49%
  5. Chronic kidney disease47%
  6. Ischemic heart disease45%
  7. Mood disorders45%
  8. Depression41%

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

Shayan Siddiqui's patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women52%
  • Men48%

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

Shayan Siddiqui wrote 172 Medicare Part D claims in 2024

In 2024, Shayan Siddiqui wrote 172 Medicare Part D claims for 85 patients. 92% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $259 in total drug cost. In 2022, CMS named 12 claims across 1 drug.

Part D claims, 2024172
Drugs named by CMS2
Total drug cost$259
Part D patients85

Shayan Siddiqui's Part D claims by kind of drug, 2024

  • Generic159 claims92%
  • Brand-name13 claims8%

Shayan Siddiqui'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 Shayan Siddiqui's Part D claims, 2024

  • Antibiotics22%38 of 172 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, 2022 to 2024

  • 2022
  • 2024
Claims for drugs CMS names
2022: 122024: 25108%

Drugs named by CMS: 2 in 2024, 1 in 2022.

See all prescribing by Shayan Siddiqui

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

How Shayan Siddiqui takes part in Medicare

Shayan Siddiqui accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Shayan Siddiqui received $258 in industry payments from 2017 to 2025

CMS Open Payments shows 13 general payments to Shayan Siddiqui from 7 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $84.

General payments to Shayan Siddiqui by program year, 2017 to 2025

Companies that paid Shayan Siddiqui the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Shayan Siddiqui

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

Sources for Shayan Siddiqui'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
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 Shayan Siddiqui

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

What is Shayan Siddiqui's NPI number?

Shayan Siddiqui's NPI number is 1366896243. It was assigned on April 18, 2016, and it is active in the NPI Registry.

What does Shayan Siddiqui specialize in?

Shayan Siddiqui is an internist in Rockville, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Shayan Siddiqui practice?

Shayan Siddiqui practices at 9901 Medical Center Dr, Rockville, MD 20850. Shayan Siddiqui's primary practice is Shady Grove Adventist Hospital in Rockville, Maryland. Dmand AI also links Shayan Siddiqui to 1 medical group.

What is Shayan Siddiqui's office phone number?

The practice phone on file for Shayan Siddiqui is (301) 279-6155.

What is Shayan Siddiqui's medical license number?

Shayan Siddiqui holds Maryland license D0087870, one of the licenses on file in 2 states.

Which states has Shayan Siddiqui been licensed in?

Dmand AI has state licenses on file for Shayan Siddiqui in Maryland and Texas.

Which hospitals is Shayan Siddiqui affiliated with?

Shayan Siddiqui is affiliated with Adventist HealthCare Shady Grove Medical Center.

What medical group is Shayan Siddiqui part of?

Shayan Siddiqui is linked to US Acute Care Solutions (USACS). Dmand AI links Shayan Siddiqui to 1 more medical group.

Does Shayan Siddiqui accept Medicare?

Yes. CMS data shows Shayan Siddiqui billed Medicare for 1,414 services in 2024, and Shayan Siddiqui accepts Medicare assignment.

How many Medicare patients does Shayan Siddiqui see?

CMS counts 404 Medicare patients who saw Shayan Siddiqui in 2024, with an average age of 78.

Show 4 more questionsShow fewer questions

What services does Shayan Siddiqui bill to Medicare?

In 2024, Shayan Siddiqui's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).

What drugs does Shayan Siddiqui prescribe most?

In 2024 Medicare Part D data, Shayan Siddiqui's most prescribed drugs by claims were Pantoprazole Sodium and Amoxicillin-Clavulanate Potass.

Has Shayan Siddiqui received payments from drug or device companies?

CMS Open Payments shows $258 in general payments to Shayan Siddiqui from 7 companies from 2017 to 2025. The largest total came from Abbvie Inc.

How long has Shayan Siddiqui been practicing?

Shayan Siddiqui graduated from medical school in 2008, 18 years ago.

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