Dr. John Patrick Vella, MD
- Medicare services, 2024
- 392
- Medicare patients, 2024
- 286
- Part D claims, 2024
- 2,047
- Publications
- 14
- Clinical trials
- 1
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vella'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. John Patrick Vella is a nephrologist in Portland, Maine
Dr. Vella practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Vella's NPI, 1255332698, was assigned on August 9, 2005. Dr. Vella holds Maine license 015048.
- NPI
- 1255332698NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224066857
- NPI enumeration date
- August 9, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Patrick Vella practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Vella'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.
- MaineHealth Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Source: Dmand AI Affiliation Data
Dr. John Patrick Vella is affiliated with 8 sites of care and 3 medical groups
Dr. Vella's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dr. Vella is also affiliated with MaineGeneral Medical Center. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dmand AI also links Dr. Vella to 3 more hospitals, 3 group practices and clinics and 2 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. John Patrick Vella's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vella practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Maine Medical Center | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Patrick Vella is one of 38 nephrologists in Maine
Nephrology is Dr. Vella's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Vella is licensed in Maine.
Specialties and state licenses
- Nephrology, MainePrimary
Nephrologists near Dr. Vella
Counts of nephrologists 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. John Patrick Vella billed Medicare for 392 services in 2024
CMS data shows 392 Medicare services from Dr. Vella across 9 procedure codes in 2024, for 286 Medicare patients. Medicare paid $31,174 for them.
Dr. Vella's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1752024: 34999%
- Tests and treatments
- 2023: 502024: 3138%
- Imaging
- 2023: 342024: 1265%
Where Dr. Vella's Medicare services took place, 2024
- In an office5514%
- In a facility33786%
Dr. Vella compared with the Maine median for nephrologists, 2024
- Dr. Vella
- Maine median
- Medicare services
- 392vs 411Close to median
- Medicare patients
- 286vs 18455% above
- Part D claims
- 1,892vs 3585.3 times
Medians across 40 nephrologists in Maine with Dmand AI profiles that report each measure.
Dr. Vella'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. Vella and other nephrologists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Patrick Vella treated 286 Medicare patients in 2024, average age 67
CMS counts 286 Medicare patients who saw Dr. Vella in 2024. The largest group is 65 to 74, with 103 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 35% are also on Medicaid. Their average risk score is 3.54, 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. Vella's median patient age at 69, with 42% women.
Dr. Vella's Medicare patients by age, 2024
Dr. Vella's Medicare patients by sex, 2024
- Women13045%
- Men15655%
Chronic conditions among Dr. Vella's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes46%
- Heart failure44%
- Ischemic heart disease42%
- Arthritis40%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vella's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women42%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Patrick Vella wrote 2,047 Medicare Part D claims in 2024
In 2024, Dr. Vella wrote 2,047 Medicare Part D claims for 277 patients. 94% of them were for generic drugs. CMS names the drug for 1,892 of them, across 38 drugs with 11 or more claims each, at $128,721 in total drug cost. In 2023, CMS named 2,017 claims across 35 drugs.
Dr. Vella's Part D claims by kind of drug, 2024
- Generic1,932 claims94%
- Brand-name and other115 claims6%
Dr. Vella'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. Vella's Part D claims, 2024
- Antibiotics3%69 of 2,047 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: 2,0172024: 1,8926%
Drugs named by CMS: 38 in 2024, 35 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
Dr. John Patrick Vella 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. Vella for performance year 2024, reported through an alternative payment model (APM). Dr. Vella accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Vella as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Vella'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. John Patrick Vella has 14 publications on record
Dmand AI links 14 papers to Dr. Vella, published from 2014 to 2024. 2015 was the busiest year, with 2. The most frequent topics are Kidney Transplantation, Living Donors and Nephrectomy. Dr. Vella has published most often in Am J Transplant. Dr. Vella's most frequent co-authors are Didier A. Mandelbrot, MD, James F. Whiting, MD and Liise Kristina Kayler, MD.
Dr. Vella's papers by year, 2014 to 2024
Topics Dr. Vella writes about most
- Kidney Transplantation
- Living Donors
- Nephrectomy
- Kidney Failure, Chronic
- Antihypertensive Agents
- Blood Pressure
- Costs and Cost Analysis
- Fear
Dr. Vella's most frequent co-authors
- Didier A. Mandelbrot, MD8 shared papers
- James F. Whiting, MD8 shared papers
- Liise Kristina Kayler, MD7 shared papers
Recent publications by Dr. Vella
Am J Transplant
See who Dr. Vella researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Vella works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Patrick Vella has worked on 1 clinical trial
Dmand AI links Dr. Vella to 1 clinical trial.
Investigators on the most trials with Dr. Vella
- Enver Akalin, MD1 shared trial
- Bernard V. Fischbach, MD1 shared trial
- John Judd Friedewald, MD1 shared trial
Recent clinical trials with Dr. Vella
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John Patrick Vella received $43 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Vella from 1 drug or device company in 2024. Education make up the largest share, 100% of the total. Calliditas Therapeutics US Inc. paid the most, $43.
Companies that paid Dr. Vella the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Patrick Vella'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John Patrick Vella
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. John Patrick Vella's NPI number?
Dr. John Patrick Vella's NPI number is 1255332698. It was assigned on August 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Patrick Vella?
Dr. John Patrick Vella is a nephrologist in Portland, Maine. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. John Patrick Vella practice?
Dr. Vella practices at 22 Bramhall St, Portland, ME 04102. Dr. Vella's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dmand AI also links Dr. Vella to 3 hospitals, 3 group practices and clinics and 2 medical groups.
What is Dr. John Patrick Vella's office phone number?
The practice phone on file for Dr. Vella is (207) 662-0111.
What is Dr. John Patrick Vella's medical license number?
Dr. Vella holds Maine license 015048.
Which hospitals is Dr. John Patrick Vella affiliated with?
Dr. Vella practices at MaineHealth Maine Medical Center in Portland, Maine. Dr. Vella is also affiliated with MaineGeneral Medical Center. Dmand AI links Dr. Vella to 3 more hospitals.
What medical group is Dr. John Patrick Vella part of?
Dr. Vella is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Vella to 2 more medical groups.
Does Dr. John Patrick Vella accept Medicare?
Yes. CMS data shows Dr. Vella billed Medicare for 392 services in 2024, and Dr. Vella accepts Medicare assignment.
Does Dr. John Patrick Vella offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Vella as offering telehealth services.
What is Dr. John Patrick Vella's MIPS score?
Dr. Vella's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. John Patrick Vella see?
CMS counts 286 Medicare patients who saw Dr. Vella in 2024, with an average age of 67.
What services does Dr. John Patrick Vella bill to Medicare?
In 2024, Dr. Vella's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and hospital inpatient care (99232).
What drugs does Dr. John Patrick Vella prescribe most?
In 2024 Medicare Part D data, Dr. Vella's most prescribed drugs by claims were Atorvastatin Calcium, Prednisone and Amlodipine Besylate.
Has Dr. John Patrick Vella received payments from drug or device companies?
CMS Open Payments shows $43 in general payments to Dr. Vella from 1 company from 2024 to 2024. The largest total came from Calliditas Therapeutics US Inc.
How long has Dr. John Patrick Vella been practicing?
Dr. Vella graduated from medical school in 1998, 28 years ago.
Does Dr. John Patrick Vella do research?
Dmand AI links 14 publications to Dr. Vella, published from 2014 to 2024. Dr. Vella has worked on 1 clinical trial.
Who does Dr. John Patrick Vella publish with?
Dr. Vella's most frequent co-authors are Didier A. Mandelbrot, MD (8 shared papers), James F. Whiting, MD (8 shared papers) and Liise Kristina Kayler, MD (7 shared papers).
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