Dr. William Portman, MD
- Medicare services, 2024
- 38
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 210
- State licenses
- 2
- Year NPI issued
- 2015
- Practice address
- 459 Patterson Rd, Honolulu, HI 96819
- Practice phone
- Call (405) 590-3825
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Portman'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. William Portman is a psychiatrist in Honolulu, Hawaii
Dr. Portman practices in Honolulu, Hawaii.
Dr. Portman's NPI, 1639551294, was assigned on June 19, 2015. Dr. Portman holds California license A168551.
- NPI
- 1639551294NPI Registry (opens in a new tab)
- NPI enumeration date
- June 19, 2015
- NPI status
- Active
- Practice phone
- (405) 590-3825
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William Portman's practice address is in Honolulu, Hawaii
Dr. Portman's practice address in the NPI Registry is 459 Patterson Rd, Honolulu, HI 96819, in Honolulu County. The practice phone is (405) 590-3825.
- NPI Registry address459 Patterson Rd, Honolulu, HI 96819 · Honolulu CountyPhone(405) 590-3825
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. William Portman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Portman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Portman's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Portman is one of 236 psychiatrists in Hawaii
Psychiatry is Dr. Portman's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Portman's licenses on file in 2 states: California and Hawaii.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Hawaii license
Psychiatrists near Dr. Portman
Counts of psychiatrists 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. William Portman billed Medicare for 38 services in 2024
CMS data shows 38 Medicare services from Dr. Portman across 2 procedure codes in 2024, for 12 Medicare patients. Medicare paid $2,068 for them. Every service was in an office.
Dr. Portman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1292024: 2283%
- Tests and treatments
- 2023: 812024: 1680%
Dr. Portman compared with the Hawaii median for psychiatrists, 2024
- Dr. Portman
- Hawaii median
- Medicare services
- 38vs 11868% below
- Medicare patients
- 12vs 3060% below
- Part D claims
- 48vs 16771% below
Medians across 223 psychiatrists in Hawaii with Dmand AI profiles that report each measure.
Dr. Portman'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. William Portman treated 12 Medicare patients in 2024, average age 69
CMS counts 12 Medicare patients who saw Dr. Portman in 2024. 75% of them have depression, and 75% have mood disorders. Their average risk score is 0.98, where 1.00 is the Medicare average.
Chronic conditions among Dr. Portman's Medicare patients, 2024
- Depression75%
- Mood disorders75%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Portman wrote 210 Medicare Part D claims in 2024
In 2024, Dr. Portman wrote 210 Medicare Part D claims for 52 patients. 92% of them were for generic drugs. CMS names the drug for 48 of them, across 4 drugs with 11 or more claims each, at $337 in total drug cost. In 2023, CMS named 902 claims across 33 drugs.
Dr. Portman's Part D claims by kind of drug, 2024
- Generic194 claims92%
- Brand-name16 claims8%
Dr. Portman'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. Portman's Part D claims, 2024
- Antipsychotics, patients 65 and over12%25 of 210 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: 9022024: 4895%
Drugs named by CMS: 4 in 2024, 33 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
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Sources for Dr. William Portman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 | Medicare 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) |
| 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. William Portman
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. William Portman's NPI number?
Dr. William Portman's NPI number is 1639551294. It was assigned on June 19, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. William Portman?
Dr. William Portman is a psychiatrist in Honolulu, Hawaii. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. William Portman practice?
Dr. Portman practices at 459 Patterson Rd, Honolulu, HI 96819.
What is Dr. William Portman's office phone number?
The practice phone on file for Dr. Portman is (405) 590-3825.
What is Dr. William Portman's medical license number?
Dr. Portman holds California license A168551, one of the licenses on file in 2 states.
Which states has Dr. William Portman been licensed in?
Dmand AI has state licenses on file for Dr. Portman in California and Hawaii.
Does Dr. William Portman accept Medicare?
Yes. CMS data shows Dr. Portman billed Medicare for 38 services in 2024.
How many Medicare patients does Dr. William Portman see?
CMS counts 12 Medicare patients who saw Dr. Portman in 2024, with an average age of 69.
What services does Dr. William Portman bill to Medicare?
In 2024, Dr. Portman's most billed Medicare services were office visit, established patient (99214) and psychiatric service (90833).
What drugs does Dr. William Portman prescribe most?
In 2024 Medicare Part D data, Dr. Portman's most prescribed drugs by claims were Quetiapine Fumarate, Alprazolam and Clonazepam.
How long has Dr. William Portman been practicing?
Dr. Portman's NPI was assigned in 2015.
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