Dr. William G. Costello, MD
- Medicare services, 2024
- 272
- Medicare patients, 2024
- 242
- Part D claims, 2024
- 147
- Hospital affiliations
- 2
- Industry payments
- $13
- Practice address
- 50 Union Street, Ellsworth, ME 04605
- Practice phone
- Call (207) 667-5311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Costello'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 G. Costello is an emergency medicine physician in Ellsworth, Maine
Dr. Costello practices at Northern Light Maine Coast Hospital in Ellsworth, Maine, part of Northern Light Health.
Dr. Costello's NPI, 1629227145, was assigned on September 9, 2008. Dr. Costello graduated from Boston University School of Medicine in 1989. Dr. Costello holds Georgia license 061570.
- NPI
- 1629227145NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709943061
- NPI enumeration date
- September 9, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 667-5311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William G. Costello practices at Northern Light Maine Coast Hospital in Ellsworth, Maine
Dr. Costello's primary practice is Northern Light Maine Coast Hospital, at 50 Union Street, Ellsworth, ME 04605 in Hancock County. The practice phone is (207) 667-5311.
- Northern Light Maine Coast Hospital50 Union Street, Ellsworth, ME 04605 · Hancock CountyPhone(207) 667-5311
Source: Dmand AI Affiliation Data
Dr. William G. Costello is affiliated with 2 sites of care and 4 medical groups
Dr. Costello's primary practice is Northern Light Maine Coast Hospital in Ellsworth, Maine, part of Northern Light Health. Dr. Costello is also affiliated with Atrium Health Navicent Baldwin. The medical group on file is Northern Light Emergency Care. Dmand AI also links Dr. Costello to 3 more medical groups, 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. William G. Costello's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Costello practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Light Maine Coast Hospital | Available with a free account |
| +1 more site and 3 medical groups | 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 Northern Light Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William G. Costello is one of 410 emergency medicine physicians in Maine
Emergency medicine is Dr. Costello's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Costello's licenses on file in 3 states: Georgia, Maine and New York.
Specialties and state licenses
- Emergency medicine, GeorgiaPrimary
- Maine license
- New York license
Emergency medicine physicians near Dr. Costello
Counts of emergency medicine 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. William G. Costello billed Medicare for 272 services in 2024
CMS data shows 272 Medicare services from Dr. Costello across 4 procedure codes in 2024, for 242 Medicare patients. Medicare paid $29,944 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Costello's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2192024: 25818%
- Tests and treatments
- 2023: 332024: 1458%
Dr. Costello compared with the Maine median for emergency medicine physicians, 2024
- Dr. Costello
- Maine median
- Medicare services
- 272vs 18448% above
- Medicare patients
- 242vs 19524% above
- Part D claims
- 48vs 5817% below
Medians across 426 emergency medicine physicians in Maine with Dmand AI profiles that report each measure.
Dr. Costello'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. Costello?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Costello and other emergency medicine physicians in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William G. Costello treated 242 Medicare patients in 2024, average age 75
CMS counts 242 Medicare patients who saw Dr. Costello in 2024. The largest group is 75 to 84, with 87 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.56, 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. Costello's median patient age at 59, with 52% women.
Dr. Costello's Medicare patients by age, 2024
Dr. Costello's Medicare patients by sex, 2024
- Women12652%
- Men11648%
Chronic conditions among Dr. Costello's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis42%
- Ischemic heart disease36%
- Chronic kidney disease34%
- Diabetes34%
- Atrial fibrillation32%
- Anxiety30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Costello's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William G. Costello wrote 147 Medicare Part D claims in 2024
In 2024, Dr. Costello wrote 147 Medicare Part D claims for 104 patients. 92% of them were for generic drugs. CMS names the drug for 48 of them, across 3 drugs with 11 or more claims each, at $123 in total drug cost. In 2023, CMS named 27 claims across 2 drugs.
Dr. Costello's Part D claims by kind of drug, 2024
- Generic135 claims92%
- Brand-name and other12 claims8%
Dr. Costello'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. Costello's Part D claims, 2024
- Opioids15%22 of 147 claims
- Antibiotics36%53 of 147 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: 272024: 4878%
Drugs named by CMS: 3 in 2024, 2 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. William G. Costello takes part in Medicare
Dr. Costello 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. William G. Costello received $13 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Costello from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $13.
Companies that paid Dr. Costello the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William G. Costello graduated from Boston University School of Medicine
Dr. Costello graduated from Boston University School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William G. Costello'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. William G. Costello
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 G. Costello's NPI number?
Dr. William G. Costello's NPI number is 1629227145. It was assigned on September 9, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. William G. Costello?
Dr. William G. Costello is an emergency medicine physician in Ellsworth, Maine. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. William G. Costello practice?
Dr. Costello practices at 50 Union Street, Ellsworth, ME 04605. Dr. Costello's primary practice is Northern Light Maine Coast Hospital in Ellsworth, Maine, part of Northern Light Health. Dmand AI also links Dr. Costello to 3 medical groups.
What is Dr. William G. Costello's office phone number?
The practice phone on file for Dr. Costello is (207) 667-5311.
What is Dr. William G. Costello's medical license number?
Dr. Costello holds Georgia license 061570, one of the licenses on file in 3 states.
Which states has Dr. William G. Costello been licensed in?
Dmand AI has state licenses on file for Dr. Costello in Georgia, Maine and New York.
Which hospitals is Dr. William G. Costello affiliated with?
Dr. Costello practices at Northern Light Maine Coast Hospital in Ellsworth, Maine. Dr. Costello is also affiliated with Atrium Health Navicent Baldwin.
What medical group is Dr. William G. Costello part of?
Dr. Costello is linked to Northern Light Emergency Care. Dmand AI links Dr. Costello to 3 more medical groups.
Does Dr. William G. Costello accept Medicare?
Yes. CMS data shows Dr. Costello billed Medicare for 272 services in 2024, and Dr. Costello accepts Medicare assignment.
How many Medicare patients does Dr. William G. Costello see?
CMS counts 242 Medicare patients who saw Dr. Costello in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. William G. Costello bill to Medicare?
In 2024, Dr. Costello's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
Where did Dr. William G. Costello go to medical school?
Dr. Costello graduated from Boston University School of Medicine in 1989.
What drugs does Dr. William G. Costello prescribe most?
In 2024 Medicare Part D data, Dr. Costello's most prescribed drugs by claims were Cephalexin, Tramadol HCl and Prednisone.
Has Dr. William G. Costello received payments from drug or device companies?
CMS Open Payments shows $13 in general payments to Dr. Costello from 1 company from 2018 to 2018. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. William G. Costello been practicing?
Dr. Costello graduated from medical school in 1989, 37 years ago.
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