Dr. Mark J. Neavyn, MD

  • Portland, ME
  • Emergency medicine physician
NPI1578719704PAC ID2163573536
Medicare services, 2024
138
Medicare patients, 2024
153
Part D claims, 2024
19
Publications
14
MIPS score, 2024
98
Practice address
22 Bramhall St, Portland, ME 04102
Practice phone
Call (207) 662-0111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

MaineHealth Maine Medical Center

Hospital · Portland, Maine

See all 2 affiliations

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Dr. Mark J. Neavyn is an emergency medicine physician in Portland, Maine

Dr. Neavyn practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.

Dr. Neavyn's NPI, 1578719704, was assigned on August 7, 2008. Dr. Neavyn holds Maine license MD23807.

NPI and contact details
Medicare PAC ID
2163573536
NPI enumeration date
August 7, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(207) 662-0111
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark J. Neavyn practices at MaineHealth Maine Medical Center in Portland, Maine

Dr. Neavyn's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.

Source: Dmand AI Affiliation Data

Dr. Mark J. Neavyn is affiliated with 1 site of care and 1 medical group

Dr. Neavyn's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dr. Neavyn's employer is on file too: a hospital.

See all 2 affiliations for Dr. Neavyn

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark J. Neavyn's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Neavyn practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
MaineHealth Maine Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Mark J. Neavyn is one of 410 emergency medicine physicians in Maine

Emergency medicine is Dr. Neavyn's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Neavyn's licenses on file in 3 states: Maine, Connecticut and Massachusetts.

Specialties and state licenses

  • Emergency medicine, MainePrimaryLicense MD23807 · taxonomy 207P00000X
  • Connecticut licenseLicense 052572
  • Massachusetts licenseLicense 250461

Emergency medicine physicians near Dr. Neavyn

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. Mark J. Neavyn billed Medicare for 138 services in 2024

CMS data shows 138 Medicare services from Dr. Neavyn across 3 procedure codes in 2024, for 153 Medicare patients. Medicare paid $17,580 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024138
Medicare patients153
Paid by Medicare$17,580
Procedure codes3

Dr. Neavyn's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1232024: 13812%

Dr. Neavyn compared with the Maine median for emergency medicine physicians, 2024

  • Dr. Neavyn
  • Maine median
Medicare services
138vs 18425% below
Medicare patients
153vs 19522% below

Medians across 426 emergency medicine physicians in Maine with Dmand AI profiles that report each measure.

Dr. Neavyn'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.

See all procedures by Dr. Neavyn

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Neavyn and other emergency medicine physicians in Maine.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark J. Neavyn treated 153 Medicare patients in 2024, average age 72

CMS counts 153 Medicare patients who saw Dr. Neavyn in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.13, 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. Neavyn's median patient age at 59, with 52% women.

Medicare patients, 2024153
Average age72
Average risk score2.13
Also on Medicaid46%

Dr. Neavyn's Medicare patients by age, 2024

Dr. Neavyn's Medicare patients by sex, 2024

  • Women8153%
  • Men7247%

Chronic conditions among Dr. Neavyn's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol67%
  3. Arthritis52%
  4. Mood disorders48%
  5. Anxiety46%
  6. Depression46%
  7. Ischemic heart disease39%
  8. Heart failure37%

Share of Medicare patients with each condition. A patient can have several.

Dr. Neavyn'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. Mark J. Neavyn wrote 19 Medicare Part D claims in 2024

In 2024, Dr. Neavyn wrote 19 Medicare Part D claims for 17 patients. 84% of them were for generic drugs.

Part D claims, 202419
Part D patients17

Dr. Neavyn's Part D claims by kind of drug, 2024

  • Generic16 claims84%
  • Brand-name and other3 claims16%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Mark J. Neavyn scored 98 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Neavyn for performance year 2024, reported through an alternative payment model (APM). Dr. Neavyn accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Neavyn's MIPS scores, performance year 2024

  • 98of 100Final score
  • 83.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Mark J. Neavyn has 14 publications on record

Dmand AI links 14 papers to Dr. Neavyn, published from 2013 to 2025. 2017 was the busiest year, with 3. The most frequent topics are Cannabinoids, Cannabis and Toxicology. Dr. Neavyn has published most often in J Med Toxicol. Dr. Neavyn's most frequent co-authors are Laura M. Tormoehlen, MD, Jeffrey T. Lai, MD and Jeffrey Brent, MD.

Papers14
Years published2013 to 2025

Dr. Neavyn's papers by year, 2013 to 2025

Topics Dr. Neavyn writes about most

  • Cannabinoids
  • Cannabis
  • Toxicology

Dr. Neavyn's most frequent co-authors

Recent publications by Dr. Neavyn

See all 14 publications and co-authors

See who Dr. Neavyn researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Neavyn works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Sources for Dr. Mark J. Neavyn's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark J. Neavyn

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. Mark J. Neavyn's NPI number?

Dr. Mark J. Neavyn's NPI number is 1578719704. It was assigned on August 7, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark J. Neavyn?

Dr. Mark J. Neavyn is an emergency medicine physician in Portland, Maine. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Mark J. Neavyn practice?

Dr. Neavyn practices at 22 Bramhall St, Portland, ME 04102. Dr. Neavyn's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.

What is Dr. Mark J. Neavyn's office phone number?

The practice phone on file for Dr. Neavyn is (207) 662-0111.

What is Dr. Mark J. Neavyn's medical license number?

Dr. Neavyn holds Maine license MD23807, one of the licenses on file in 3 states.

Which states has Dr. Mark J. Neavyn been licensed in?

Dmand AI has state licenses on file for Dr. Neavyn in Maine, Connecticut and Massachusetts.

Which hospitals is Dr. Mark J. Neavyn affiliated with?

Dr. Neavyn practices at MaineHealth Maine Medical Center in Portland, Maine.

What medical group is Dr. Mark J. Neavyn part of?

Dr. Neavyn is linked to MaineHealth Primary Care - Family Medicine - Portland.

Does Dr. Mark J. Neavyn accept Medicare?

Yes. CMS data shows Dr. Neavyn billed Medicare for 138 services in 2024, and Dr. Neavyn accepts Medicare assignment.

What is Dr. Mark J. Neavyn's MIPS score?

Dr. Neavyn's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).

Show 5 more questionsShow fewer questions

How many Medicare patients does Dr. Mark J. Neavyn see?

CMS counts 153 Medicare patients who saw Dr. Neavyn in 2024, with an average age of 72.

What services does Dr. Mark J. Neavyn bill to Medicare?

In 2024, Dr. Neavyn's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).

How long has Dr. Mark J. Neavyn been practicing?

Dr. Neavyn graduated from medical school in 2006, 20 years ago.

Does Dr. Mark J. Neavyn do research?

Dmand AI links 14 publications to Dr. Neavyn, published from 2013 to 2025.

Who does Dr. Mark J. Neavyn publish with?

Dr. Neavyn's most frequent co-authors are Laura M. Tormoehlen, MD (4 shared papers), Jeffrey T. Lai, MD (3 shared papers) and Jeffrey Brent, MD (2 shared papers).

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