Dr. Walter M. Hassig, MD
- Medicare services, 2024
- 307
- Medicare patients, 2024
- 244
- Part D claims, 2024
- 864
- Hospital affiliations
- 1
- Industry payments
- $1,680
- Practice address
- 315 S Mlk Jr Way, Tacoma, WA 98405
- Practice phone
- Call (253) 403-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hassig's professional email, personal email and mobile number
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Dr. Walter M. Hassig is a gastroenterologist in Tacoma, Washington
Dr. Hassig practices at MultiCare Tacoma General Hospital in Tacoma, Washington, part of MultiCare Health System.
Dr. Hassig's NPI, 1730152794, was assigned on February 9, 2006. Dr. Hassig graduated from Michigan State University College of Osteopathic Medicine in 1986. Dr. Hassig holds Washington license MD00037341.
- NPI
- 1730152794NPI Registry (opens in a new tab)
- NPI enumeration date
- February 9, 2006
- NPI status
- Active
- Practice phone
- (253) 403-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Walter M. Hassig practices at MultiCare Tacoma General Hospital in Tacoma, Washington
Dr. Hassig's primary practice is MultiCare Tacoma General Hospital, at 315 S Mlk Jr Way, Tacoma, WA 98405 in Pierce County. The practice phone is (253) 403-1000.
- MultiCare Tacoma General Hospital315 S Mlk Jr Way, Tacoma, WA 98405 · Pierce CountyPhone(253) 403-1000
Source: Dmand AI Affiliation Data
Dr. Walter M. Hassig is affiliated with 4 sites of care and 1 medical group
Dr. Hassig's primary practice is MultiCare Tacoma General Hospital in Tacoma, Washington, part of MultiCare Health System. The medical group on file is Washington Gastroenterology. Dmand AI also links Dr. Hassig to 1 more behavioral health center, 1 group practice or clinic and 1 urgent care center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter M. Hassig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hassig practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MultiCare Tacoma General Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter M. Hassig is one of 434 gastroenterologists in Washington
Gastroenterology is Dr. Hassig's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hassig is licensed in Washington.
Specialties and state licenses
- Gastroenterology, WashingtonPrimary
Gastroenterologists near Dr. Hassig
Counts of gastroenterologists 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. Walter M. Hassig billed Medicare for 307 services in 2024
CMS data shows 307 Medicare services from Dr. Hassig across 9 procedure codes in 2024, for 244 Medicare patients. Medicare paid $35,411 for them.
Dr. Hassig's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2002024: 13931%
- Other services
- 2023: 782024: 9623%
- Office and hospital visits
- 2023: 4192024: 7283%
Where Dr. Hassig's Medicare services took place, 2024
- In an office7223%
- In a facility23577%
Dr. Hassig compared with the Washington median for gastroenterologists, 2024
- Dr. Hassig
- Washington median
- Medicare services
- 307vs 35614% below
- Medicare patients
- 244vs 244Close to median
- Part D claims
- 743vs 2722.7 times
Medians across 433 gastroenterologists in Washington with Dmand AI profiles that report each measure.
Dr. Hassig'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hassig and other gastroenterologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter M. Hassig treated 244 Medicare patients in 2024, average age 73
CMS counts 244 Medicare patients who saw Dr. Hassig in 2024. The largest group is 65 to 74, with 132 patients. 71% of them have high blood pressure, and 67% have high cholesterol. 8% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hassig's median patient age at 64, with 38% women.
Dr. Hassig's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hassig's Medicare patients by sex, 2024
- Women11547%
- Men12953%
Chronic conditions among Dr. Hassig's Medicare patients, 2024
- High blood pressure71%
- High cholesterol67%
- Arthritis43%
- Diabetes27%
- Ischemic heart disease20%
- Cancer19%
- Mood disorders18%
- Anxiety16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hassig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women38%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter M. Hassig wrote 864 Medicare Part D claims in 2024
In 2024, Dr. Hassig wrote 864 Medicare Part D claims for 405 patients. 84% of them were for generic drugs. CMS names the drug for 743 of them, across 15 drugs with 11 or more claims each, at $31,958 in total drug cost. In 2023, CMS named 666 claims across 14 drugs.
Dr. Hassig's Part D claims by kind of drug, 2024
- Generic729 claims84%
- Brand-name135 claims16%
Dr. Hassig'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. Hassig's Part D claims, 2024
- Antibiotics4%38 of 864 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: 6662024: 74312%
Drugs named by CMS: 15 in 2024, 14 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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Dr. Walter M. Hassig received $1,680 in industry payments from 2016 to 2024
CMS Open Payments shows 30 general payments to Dr. Hassig from 13 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $971.
General payments to Dr. Hassig by program year, 2016 to 2024
Companies that paid Dr. Hassig the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter M. Hassig graduated from Michigan State University College of Osteopathic Medicine
Dr. Hassig graduated from Michigan State University College of Osteopathic Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Walter M. Hassig'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Walter M. Hassig
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. Walter M. Hassig's NPI number?
Dr. Walter M. Hassig's NPI number is 1730152794. It was assigned on February 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter M. Hassig?
Dr. Walter M. Hassig is a gastroenterologist in Tacoma, Washington. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Walter M. Hassig practice?
Dr. Hassig practices at 315 S Mlk Jr Way, Tacoma, WA 98405. Dr. Hassig's primary practice is MultiCare Tacoma General Hospital in Tacoma, Washington, part of MultiCare Health System. Dmand AI also links Dr. Hassig to 1 behavioral health center, 1 group practice or clinic and 1 urgent care center.
What is Dr. Walter M. Hassig's office phone number?
The practice phone on file for Dr. Hassig is (253) 403-1000.
What is Dr. Walter M. Hassig's medical license number?
Dr. Hassig holds Washington license MD00037341.
Which hospitals is Dr. Walter M. Hassig affiliated with?
Dr. Hassig practices at MultiCare Tacoma General Hospital in Tacoma, Washington.
What medical group is Dr. Walter M. Hassig part of?
Dr. Hassig is linked to Washington Gastroenterology.
Does Dr. Walter M. Hassig accept Medicare?
Yes. CMS data shows Dr. Hassig billed Medicare for 307 services in 2024.
How many Medicare patients does Dr. Walter M. Hassig see?
CMS counts 244 Medicare patients who saw Dr. Hassig in 2024, with an average age of 73.
What services does Dr. Walter M. Hassig bill to Medicare?
In 2024, Dr. Hassig's most billed Medicare services were surgery: digestive system (45380), surgery: digestive system (43239) and medicare service (G0500).
Show 4 more questionsShow fewer questions
Where did Dr. Walter M. Hassig go to medical school?
Dr. Hassig graduated from Michigan State University College of Osteopathic Medicine in 1986.
What drugs does Dr. Walter M. Hassig prescribe most?
In 2024 Medicare Part D data, Dr. Hassig's most prescribed drugs by claims were Pantoprazole Sodium, Gavilyte-G and Peg-3350 And Electrolytes.
Has Dr. Walter M. Hassig received payments from drug or device companies?
CMS Open Payments shows $1,680 in general payments to Dr. Hassig from 13 companies from 2016 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Walter M. Hassig been practicing?
Dr. Hassig graduated from medical school in 1986, 40 years ago.
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