Dr. Hamid Umer Arain, DO
- Part D claims, 2024
- 426
- Hospital affiliations
- 2
- Industry payments
- $70
- Medical group
- 1
- State license
- 1
- Practice address
- 350 Hawthorne Avenue, Oakland, CA 94609
- Practice phone
- Call (510) 655-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Arain'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. Hamid Umer Arain is an internist in Oakland, California
Dr. Arain practices at Alta Bates Summit Medical Center in Oakland, California, part of Sutter Health.
Dr. Arain's NPI, 1356086250, was assigned on May 4, 2022. Dr. Arain holds Oregon license PG211595.
- NPI
- 1356086250NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961881446
- NPI enumeration date
- May 4, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 655-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hamid Umer Arain practices at Alta Bates Summit Medical Center in Oakland, California
Dr. Arain's primary practice is Alta Bates Summit Medical Center, at 350 Hawthorne Avenue, Oakland, CA 94609 in Alameda County. The practice phone is (510) 655-4000.
- Alta Bates Summit Medical Center350 Hawthorne Avenue, Oakland, CA 94609 · Alameda CountyPhone(510) 655-4000
Source: Dmand AI Affiliation Data
Dr. Hamid Umer Arain is affiliated with 2 sites of care and 1 medical group
Dr. Arain's primary practice is Alta Bates Summit Medical Center in Oakland, California, part of Sutter Health. Dr. Arain is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus. The medical group on file is Palo Alto Foundation Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Hamid Umer Arain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Arain practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alta Bates Summit Medical Center | Available with a free account |
| +1 more affiliated site | 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 Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Hamid Umer Arain is one of 16,751 internists in California
Internal medicine is Dr. Arain's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Arain is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Dr. Arain
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. Hamid Umer Arain's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Arain's median patient age at 65, with 48% women.
Dr. Arain's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women48%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Hamid Umer Arain wrote 426 Medicare Part D claims in 2024
In 2024, Dr. Arain wrote 426 Medicare Part D claims for 45 patients. 86% of them were for generic drugs. CMS names the drug for 195 of them, across 11 drugs with 11 or more claims each, at $11,306 in total drug cost. In 2023, CMS named 128 claims across 8 drugs.
Dr. Arain's Part D claims by kind of drug, 2024
- Generic367 claims86%
- Brand-name59 claims14%
Dr. Arain'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1282024: 19552%
Drugs named by CMS: 11 in 2024, 8 in 2023.
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. Hamid Umer Arain takes part in Medicare
Dr. Arain 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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Dr. Hamid Umer Arain received $70 in industry payments in 2023
CMS Open Payments shows 4 general payments to Dr. Arain from 4 drug and device companies in 2023. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $22.
Companies that paid Dr. Arain the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Hamid Umer Arain'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Hamid Umer Arain
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. Hamid Umer Arain's NPI number?
Dr. Hamid Umer Arain's NPI number is 1356086250. It was assigned on May 4, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Hamid Umer Arain?
Dr. Hamid Umer Arain is an internist in Oakland, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Hamid Umer Arain practice?
Dr. Arain practices at 350 Hawthorne Avenue, Oakland, CA 94609. Dr. Arain's primary practice is Alta Bates Summit Medical Center in Oakland, California, part of Sutter Health.
What is Dr. Hamid Umer Arain's office phone number?
The practice phone on file for Dr. Arain is (510) 655-4000.
What is Dr. Hamid Umer Arain's medical license number?
Dr. Arain holds Oregon license PG211595.
Which hospitals is Dr. Hamid Umer Arain affiliated with?
Dr. Arain practices at Alta Bates Summit Medical Center in Oakland, California. Dr. Arain is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus.
What medical group is Dr. Hamid Umer Arain part of?
Dr. Arain is linked to Palo Alto Foundation Medical Group.
Does Dr. Hamid Umer Arain accept Medicare?
Yes. CMS lists Dr. Arain as accepting Medicare assignment.
What drugs does Dr. Hamid Umer Arain prescribe most?
In 2024 Medicare Part D data, Dr. Arain's most prescribed drugs by claims were Warfarin Sodium, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Hamid Umer Arain received payments from drug or device companies?
CMS Open Payments shows $70 in general payments to Dr. Arain from 4 companies from 2023 to 2023. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Hamid Umer Arain been practicing?
Dr. Arain graduated from medical school in 2022, 4 years ago.
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