Dr. Melissa Johnnidis, DO
- Part D claims, 2024
- 206
- Hospital affiliations
- 1
- Industry payments
- $110
- Medical group
- 1
- State license
- 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. Johnnidis' 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. Melissa Johnnidis is a psychiatrist in Portland, Maine
Dr. Johnnidis practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Johnnidis' NPI, 1336728906, was assigned on April 2, 2021. Dr. Johnnidis holds Maine license DO4093.
- NPI
- 1336728906NPI Registry (opens in a new tab)
- NPI enumeration date
- April 2, 2021
- NPI status
- Active
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Melissa Johnnidis practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Johnnidis' 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. Melissa Johnnidis is affiliated with 1 site of care and 1 medical group
Dr. Johnnidis' primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. The medical group on file is The Center for Health Care Services.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Melissa Johnnidis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnnidis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Maine Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Melissa Johnnidis is one of 203 psychiatrists in Maine
Psychiatry is Dr. Johnnidis' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Johnnidis is licensed in Maine.
Specialties and state licenses
- Psychiatry, MainePrimary
Psychiatrists near Dr. Johnnidis
Counts of psychiatrists 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. Melissa Johnnidis' patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Dr. Johnnidis' median patient age at 31, with 0% women.
Dr. Johnnidis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Melissa Johnnidis wrote 206 Medicare Part D claims in 2024
In 2024, Dr. Johnnidis wrote 206 Medicare Part D claims for 36 patients. 77% of them were for generic drugs. CMS names the drug for 82 of them, across 5 drugs with 11 or more claims each, at $79,993 in total drug cost.
Dr. Johnnidis' Part D claims by kind of drug, 2024
- Generic159 claims77%
- Brand-name47 claims23%
Dr. Johnnidis' 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. Johnnidis' Part D claims, 2024
- Antipsychotics, patients 65 and over8%17 of 206 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
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Dr. Melissa Johnnidis received $110 in industry payments in 2024
CMS Open Payments shows 5 general payments to Dr. Johnnidis from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Indivior Inc. paid the most, $63.
Companies that paid Dr. Johnnidis 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. Melissa Johnnidis'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Melissa Johnnidis
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. Melissa Johnnidis' NPI number?
Dr. Melissa Johnnidis' NPI number is 1336728906. It was assigned on April 2, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Melissa Johnnidis?
Dr. Melissa Johnnidis is a psychiatrist in Portland, Maine. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Melissa Johnnidis practice?
Dr. Johnnidis practices at 22 Bramhall St, Portland, ME 04102. Dr. Johnnidis' primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
What is Dr. Melissa Johnnidis' office phone number?
The practice phone on file for Dr. Johnnidis is (207) 662-0111.
What is Dr. Melissa Johnnidis' medical license number?
Dr. Johnnidis holds Maine license DO4093.
Which hospitals is Dr. Melissa Johnnidis affiliated with?
Dr. Johnnidis practices at MaineHealth Maine Medical Center in Portland, Maine.
What medical group is Dr. Melissa Johnnidis part of?
Dr. Johnnidis is linked to The Center for Health Care Services.
What drugs does Dr. Melissa Johnnidis prescribe most?
In 2024 Medicare Part D data, Dr. Johnnidis' most prescribed drugs by claims were Invega Sustenna, Bupropion XL and Trazodone HCl.
Has Dr. Melissa Johnnidis received payments from drug or device companies?
CMS Open Payments shows $110 in general payments to Dr. Johnnidis from 2 companies from 2024 to 2024. The largest total came from Indivior Inc.
How long has Dr. Melissa Johnnidis been practicing?
Dr. Johnnidis' NPI was assigned in 2021.
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