Dr. Saiham Shahabuddin, MD
- Medicare services, 2024
- 142
- Medicare patients, 2024
- 49
- Part D claims, 2024
- 99
- Hospital affiliations
- 2
- Industry payments
- $333
- Practice address
- 911 Sunset Drive, Hollister, CA 95032
- Practice phone
- Call (831) 637-5711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shahabuddin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Saiham Shahabuddin is an internist in Hollister, California
Dr. Shahabuddin practices at Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins.
Dr. Shahabuddin's NPI, 1295078145, was assigned on March 28, 2013. Dr. Shahabuddin holds New York license 299980.
- NPI
- 1295078145NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345520961
- NPI enumeration date
- March 28, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 637-5711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Saiham Shahabuddin practices at Hazel Hawkins Memorial Hospital in Hollister, California
Dr. Shahabuddin's primary practice is Hazel Hawkins Memorial Hospital, at 911 Sunset Drive, Hollister, CA 95032 in Santa Clara County. The practice phone is (831) 637-5711.
- Hazel Hawkins Memorial Hospital911 Sunset Drive, Hollister, CA 95032 · Santa Clara CountyPhone(831) 637-5711
Source: Dmand AI Affiliation Data
Dr. Saiham Shahabuddin is affiliated with 3 sites of care and 2 medical groups
Dr. Shahabuddin's primary practice is Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins. Dr. Shahabuddin is also affiliated with St. George Regional Hospital. The medical group on file is Hazel Hawkins Memorial Hospital. Dmand AI also links Dr. Shahabuddin to 1 more skilled nursing facility and 1 medical group, each named with a free account. Dr. Shahabuddin's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Saiham Shahabuddin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shahabuddin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hazel Hawkins Memorial Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Hazel Hawkins and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Saiham Shahabuddin is one of 16,751 internists in California
Internal medicine is Dr. Shahabuddin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Shahabuddin's licenses on file in 3 states: New York, New Jersey and Pennsylvania.
Specialties and state licenses
- Internal medicine, New YorkPrimary
- New Jersey license
- Pennsylvania license
Internists near Dr. Shahabuddin
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
Dr. Saiham Shahabuddin billed Medicare for 142 services in 2024
CMS data shows 142 Medicare services from Dr. Shahabuddin across 4 procedure codes in 2024, for 49 Medicare patients. Medicare paid $15,331 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Shahabuddin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4582024: 14269%
Dr. Shahabuddin compared with the California median for internists, 2024
- Dr. Shahabuddin
- California median
- Medicare services
- 142vs 36161% below
- Medicare patients
- 49vs 15168% below
- Part D claims
- 334vs 42121% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Shahabuddin'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.
Need commercial claims for Dr. Shahabuddin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shahabuddin and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Saiham Shahabuddin treated 49 Medicare patients in 2024, average age 78
CMS counts 49 Medicare patients who saw Dr. Shahabuddin in 2024. The largest group is 75 to 84, with 19 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 1.82, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Shahabuddin's median patient age at 69, with 55% women.
Dr. Shahabuddin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Shahabuddin's Medicare patients by sex, 2024
- Women2551%
- Men2449%
Chronic conditions among Dr. Shahabuddin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation51%
- Arthritis49%
- Chronic kidney disease43%
- COPD41%
- Diabetes41%
- Heart failure41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shahabuddin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Saiham Shahabuddin wrote 99 Medicare Part D claims in 2024
In 2024, Dr. Shahabuddin wrote 99 Medicare Part D claims for 56 patients. 86% of them were for generic drugs. They cover 16 drugs, with $17,929 in total drug cost. In 2022, CMS named 3,722 claims across 87 drugs.
Dr. Shahabuddin's Part D claims by kind of drug, 2024
- Generic85 claims86%
- Brand-name and other14 claims14%
Dr. Shahabuddin's most prescribed drugs by claims, 2023
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. Shahabuddin's Part D claims, 2024
- Antibiotics26%26 of 99 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 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 3,7222023: 33491%
Drugs named by CMS: 16 in 2023, 87 in 2022.
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 Dr. Saiham Shahabuddin takes part in Medicare
Dr. Shahabuddin 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)
For MedTech and pharma teams
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Dr. Saiham Shahabuddin received $333 in industry payments from 2018 to 2025
CMS Open Payments shows 17 general payments to Dr. Shahabuddin from 9 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $151.
General payments to Dr. Shahabuddin by program year, 2018 to 2025
Companies that paid Dr. Shahabuddin the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Saiham Shahabuddin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Saiham Shahabuddin
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. Saiham Shahabuddin's NPI number?
Dr. Saiham Shahabuddin's NPI number is 1295078145. It was assigned on March 28, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Saiham Shahabuddin?
Dr. Saiham Shahabuddin is an internist in Hollister, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Saiham Shahabuddin practice?
Dr. Shahabuddin practices at 911 Sunset Drive, Hollister, CA 95032. Dr. Shahabuddin's primary practice is Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins. Dmand AI also links Dr. Shahabuddin to 1 skilled nursing facility and 1 medical group.
What is Dr. Saiham Shahabuddin's office phone number?
The practice phone on file for Dr. Shahabuddin is (831) 637-5711.
What is Dr. Saiham Shahabuddin's medical license number?
Dr. Shahabuddin holds New York license 299980, one of the licenses on file in 3 states.
Which states has Dr. Saiham Shahabuddin been licensed in?
Dmand AI has state licenses on file for Dr. Shahabuddin in New York, New Jersey and Pennsylvania.
Which hospitals is Dr. Saiham Shahabuddin affiliated with?
Dr. Shahabuddin practices at Hazel Hawkins Memorial Hospital in Hollister, California. Dr. Shahabuddin is also affiliated with St. George Regional Hospital.
What medical group is Dr. Saiham Shahabuddin part of?
Dr. Shahabuddin is linked to Hazel Hawkins Memorial Hospital. Dmand AI links Dr. Shahabuddin to 1 more medical group.
Does Dr. Saiham Shahabuddin accept Medicare?
Yes. CMS data shows Dr. Shahabuddin billed Medicare for 142 services in 2024, and Dr. Shahabuddin accepts Medicare assignment.
How many Medicare patients does Dr. Saiham Shahabuddin see?
CMS counts 49 Medicare patients who saw Dr. Shahabuddin in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Dr. Saiham Shahabuddin bill to Medicare?
In 2024, Dr. Shahabuddin's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99232) and hospital inpatient care (99239).
What drugs does Dr. Saiham Shahabuddin prescribe most?
In 2023 Medicare Part D data, Dr. Shahabuddin's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Amlodipine Besylate.
Has Dr. Saiham Shahabuddin received payments from drug or device companies?
CMS Open Payments shows $333 in general payments to Dr. Shahabuddin from 9 companies from 2018 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Saiham Shahabuddin been practicing?
Dr. Shahabuddin graduated from medical school in 2013, 13 years ago.
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