Dr. Stephen D. Hennessey, MD
- Medicare services, 2024
- 137
- Medicare patients, 2024
- 80
- Part D claims, 2024
- 429
- Hospital affiliations
- 1
- Industry payments
- $15
- Practice address
- 1800 Crooks Hill Road Suite G, Centralia, WA 98531
- Practice phone
- Call (360) 736-3042
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley View Health Center - Centralia
FQHC - Main Site · Centralia, Washington
Find Dr. Hennessey's professional email, personal email and mobile number
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Dr. Stephen D. Hennessey is a general practice physician in Centralia, Washington
Dr. Hennessey practices at Valley View Health Center - Centralia in Centralia, Washington.
Dr. Hennessey's NPI, 1376544098, was assigned on August 3, 2005. Dr. Hennessey graduated from University of Texas Medical School at Houston in 1983. Dr. Hennessey holds Washington license MD00025264.
- NPI
- 1376544098NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668420902
- NPI enumeration date
- August 3, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (360) 736-3042
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen D. Hennessey practices at Valley View Health Center - Centralia in Centralia, Washington
Dr. Hennessey's primary practice is Valley View Health Center - Centralia, at 1800 Crooks Hill Road Suite G, Centralia, WA 98531 in Lewis County. The practice phone is (360) 736-3042.
- Valley View Health Center - Centralia1800 Crooks Hill Road Suite G, Centralia, WA 98531 · Lewis CountyPhone(360) 736-3042
Source: Dmand AI Affiliation Data
Dr. Stephen D. Hennessey is affiliated with 2 sites of care and 1 medical group
Dr. Hennessey's primary practice is Valley View Health Center - Centralia in Centralia, Washington. Dr. Hennessey is also affiliated with Providence Centralia Hospital. The medical group on file is Valley View Health Center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen D. Hennessey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hennessey practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley View Health Center - Centralia | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen D. Hennessey is one of 238 general practice physicians in Washington
General practice is Dr. Hennessey's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Hennessey is licensed in Washington.
Specialties and state licenses
- General practice, WashingtonPrimary
General practice physicians near Dr. Hennessey
Counts of general practice physicians 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. Stephen D. Hennessey billed Medicare for 137 services in 2024
CMS data shows 137 Medicare services from Dr. Hennessey across 4 procedure codes in 2024, for 80 Medicare patients. Medicare paid $2,719 for them. Every service was in an office.
Dr. Hennessey's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1112024: 13723%
Dr. Hennessey compared with the Washington median for general practice physicians, 2024
- Dr. Hennessey
- Washington median
- Medicare services
- 137vs 1269% above
- Medicare patients
- 80vs 4386% above
- Part D claims
- 306vs 853.6 times
Medians across 117 general practice physicians in Washington with Dmand AI profiles that report each measure.
Dr. Hennessey'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. Stephen D. Hennessey treated 80 Medicare patients in 2024, average age 72
CMS counts 80 Medicare patients who saw Dr. Hennessey in 2024. The largest group is 65 to 74, with 39 patients. 70% of them have high blood pressure, and 58% have high cholesterol. 14% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hennessey's median patient age at 45, with 59% women.
Dr. Hennessey's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hennessey's Medicare patients by sex, 2024
- Women5265%
- Men2835%
Chronic conditions among Dr. Hennessey's Medicare patients, 2024
- High blood pressure70%
- High cholesterol58%
- Arthritis46%
- Diabetes35%
- Chronic kidney disease21%
- Anxiety19%
- Depression18%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hennessey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen D. Hennessey wrote 429 Medicare Part D claims in 2024
In 2024, Dr. Hennessey wrote 429 Medicare Part D claims for 292 patients. 82% of them were for generic drugs. CMS names the drug for 306 of them, across 12 drugs with 11 or more claims each, at $2,410 in total drug cost. In 2023, CMS named 402 claims across 10 drugs.
Dr. Hennessey's Part D claims by kind of drug, 2024
- Generic350 claims82%
- Brand-name and other79 claims18%
Dr. Hennessey'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. Hennessey's Part D claims, 2024
- Antibiotics54%233 of 429 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: 4022024: 30624%
Drugs named by CMS: 12 in 2024, 10 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. Stephen D. Hennessey takes part in Medicare
Dr. Hennessey 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. Stephen D. Hennessey received $15 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Hennessey from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $15.
Companies that paid Dr. Hennessey the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen D. Hennessey graduated from University of Texas Medical School at Houston
Dr. Hennessey graduated from University of Texas Medical School at Houston in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen D. Hennessey'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) |
| 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. Stephen D. Hennessey
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. Stephen D. Hennessey's NPI number?
Dr. Stephen D. Hennessey's NPI number is 1376544098. It was assigned on August 3, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen D. Hennessey?
Dr. Stephen D. Hennessey is a general practice physician in Centralia, Washington. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Stephen D. Hennessey practice?
Dr. Hennessey practices at 1800 Crooks Hill Road Suite G, Centralia, WA 98531. Dr. Hennessey's primary practice is Valley View Health Center - Centralia in Centralia, Washington.
What is Dr. Stephen D. Hennessey's office phone number?
The practice phone on file for Dr. Hennessey is (360) 736-3042.
What is Dr. Stephen D. Hennessey's medical license number?
Dr. Hennessey holds Washington license MD00025264.
Which hospitals is Dr. Stephen D. Hennessey affiliated with?
Dr. Hennessey is affiliated with Providence Centralia Hospital.
What medical group is Dr. Stephen D. Hennessey part of?
Dr. Hennessey is linked to Valley View Health Center.
Does Dr. Stephen D. Hennessey accept Medicare?
Yes. CMS data shows Dr. Hennessey billed Medicare for 137 services in 2024, and Dr. Hennessey accepts Medicare assignment.
How many Medicare patients does Dr. Stephen D. Hennessey see?
CMS counts 80 Medicare patients who saw Dr. Hennessey in 2024, with an average age of 72.
What services does Dr. Stephen D. Hennessey bill to Medicare?
In 2024, Dr. Hennessey's most billed Medicare services were lab and pathology test (87811), lab and pathology test (81002) and lab and pathology test (87880).
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Where did Dr. Stephen D. Hennessey go to medical school?
Dr. Hennessey graduated from University of Texas Medical School at Houston in 1983.
What drugs does Dr. Stephen D. Hennessey prescribe most?
In 2024 Medicare Part D data, Dr. Hennessey's most prescribed drugs by claims were Azithromycin, Amoxicillin and Prednisone.
Has Dr. Stephen D. Hennessey received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Hennessey from 1 company from 2017 to 2017. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Stephen D. Hennessey been practicing?
Dr. Hennessey graduated from medical school in 1983, 43 years ago.
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