Danyelle M. Tierney, DO
Internal Medicine Physician · Portland, ME
Danyelle M. Tierney, DO is an internal medicine physician with a practice address in Portland, Maine, and NPI 1134298813, issued on Nov 7, 2006. Check the license (Maine DO1903, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Danyelle M. Tierney
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DO1903 ME
Self-reported in NPPES; status is on the state search - Practice location
- 84 Marginal Way, Portland, ME 04101
- Phone
- (207) 774-5816
- Enumerated
- Nov 7, 2006
- Record last updated
- Nov 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (207) 523-8597
- Medicare enrollment
- Enrolled (PECOS I20051123000650); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2002
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Also registered at 84 Marginal Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Danyelle M. Tierney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license DO1903Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
154 Medicare Part D claims for 55 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $19.59
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Danyelle M. Tierney among 597 internal medicine physician records in Maine
Danyelle M. Tierney, DO is one of 597 internal medicine physician records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 44% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2002 · median 2005 among the 369 with a school on file
- Record last updated2016 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
145 internal medicine physician records list a practice address in Portland
They are 145 of the 6,022 NPPES records with a practice address in Portland, and 597 internal medicine physician records in Maine.
All 597 in Maine → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joel Botler, MDPortland, ME 041011891764577
- Charles Cathcart, MDPortland, ME 041011861461535
- Wendy Cathcart, MDPortland, ME 041011295704971
- Thomas Claffey, MDPortland, ME 041011487623153
- Steven Dobieski, MDPortland, ME 041011942279617
- John Erickson, MDPortland, ME 041011043289713
- Debra Fuchs Ertman, MDPortland, ME 041011730158403
- Phyllidia Ku-Ruth, MDPortland, ME 041011497724108
Common questions
What is Danyelle M. Tierney, DO's NPI number?
Danyelle M. Tierney, DO's National Provider Identifier (NPI) is 1134298813, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Danyelle M. Tierney, DO located?
The NPPES record lists a practice address at 84 Marginal Way, Portland, ME, 04101. Phone: (207) 774-5816. Providers update this record themselves, so call before visiting.
How can I verify Danyelle M. Tierney, DO's license?
NPPES lists Maine license number DO1903, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Danyelle M. Tierney, DO prescribe under Medicare Part D?
In 2024, Danyelle M. Tierney, DO had 154 Medicare Part D claims for 55 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Danyelle M. Tierney, DO's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.