J Drugs Dermatol
Cosmetic TechniquesInfrared RaysRadiofrequency Therapy
Gregory A. Nikolaidis
NPI1033181813
- Part D claims, 2024
- 11
- Publications
- 2
- Hospital affiliations
- 1
- Industry payments
- $90,572
- Medical group
- 1
- Practice address
- 27700 Medical Center Rd, Mission Viejo, CA 92691
- Practice phone
- Call (949) 365-2447
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Hospital - Unit
Acute Care Hospital-Unit · Mission Viejo, California
Find Gregory Nikolaidis' 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.
Gregory A. Nikolaidis is a dermatologist in Mission Viejo, California
Gregory Nikolaidis practices at Mission Hospital - Unit in Mission Viejo, California.
Gregory Nikolaidis' NPI, 1033181813, was assigned on February 6, 2006. Gregory Nikolaidis graduated from Baylor College Of Medicine in 1995. Gregory Nikolaidis holds Texas license L3414.
NPI and contact details
- NPI
- 1033181813NPI Registry (opens in a new tab)
- NPI enumeration date
- February 6, 2006
- NPI status
- Active
- Practice phone
- (949) 365-2447
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Gregory A. Nikolaidis practices at Mission Hospital - Unit in Mission Viejo, California
Gregory Nikolaidis' primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.
- Mission Hospital - Unit27700 Medical Center Rd, Mission Viejo, CA 92691 · Orange CountyPhone(949) 365-2447
Source: Dmand AI Affiliation Data
Gregory A. Nikolaidis is affiliated with 3 sites of care and 1 medical group
Gregory Nikolaidis' primary practice is Mission Hospital - Unit in Mission Viejo, California. The medical group on file is Westlake Dermatology & Cosmetic Surgery. Dmand AI also links Gregory Nikolaidis to 1 more physician office and 1 group practice or clinic, each named with a free account.
Mission Hospital - UnitPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gregory A. Nikolaidis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Nikolaidis practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mission Hospital - Unit | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory A. Nikolaidis is one of 1,910 dermatologists in California
Dermatology is Gregory Nikolaidis' primary specialty in the NPI Registry, under taxonomy code 207N00000X. Gregory Nikolaidis is board certified in dermatology by the American Board of Dermatology. Dmand AI has Gregory Nikolaidis' licenses on file in 2 states: Texas and California.
Specialties and state licenses
- Dermatology, TexasPrimary
- California license
Dermatologists near Gregory Nikolaidis
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
1,910dermatologists in California
7dermatologists in Mission Viejo
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gregory A. Nikolaidis' patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Gregory Nikolaidis' median patient age at 59, with 80% women.
Gregory Nikolaidis' 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
- Women80%
- Men20%
Source: Dmand AI Patient Panel Data
Gregory A. Nikolaidis wrote 11 Medicare Part D claims in 2024
In 2024, Gregory Nikolaidis wrote 11 Medicare Part D claims. 100% of them were for generic drugs.
Part D claims, 202411
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Gregory A. Nikolaidis has 2 publications on record
Dmand AI links 2 papers to Gregory Nikolaidis. Gregory Nikolaidis' most frequent co-authors are Darrell Spencer Rigel, MD, Laura Michelle Speck, MD and Richard R. Winkelmann, DO.
Papers2
Gregory Nikolaidis' most frequent co-authors
- Darrell Spencer Rigel, MD1 shared paper
- Laura Michelle Speck, MD1 shared paper
- Richard R. Winkelmann, DO1 shared paper
Recent publications by Gregory Nikolaidis
See who Gregory Nikolaidis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Gregory Nikolaidis works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Gregory A. Nikolaidis received $90,572 in industry payments from 2016 to 2025
CMS Open Payments shows 474 general payments to Gregory Nikolaidis from 23 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 33% of the total. Allergan Inc. paid the most, $49,087. It also lists 3 research payments totaling $4,510 in 2016.
General payments to Gregory Nikolaidis by program year, 2016 to 2025
General payments to Gregory Nikolaidis by kind, 2016 to 2025
$90.6Kin total
- Travel and lodging$30,00433%
- Consulting fees$21,10023%
- Food and beverage$21,09523%
- Speaker and faculty fees$18,36620%
- Education$70%
Companies that paid Gregory Nikolaidis the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Gregory A. Nikolaidis has 3 awards and honors on record
Dmand AI lists 3 awards for Gregory Nikolaidis.
Awards and honors for Gregory Nikolaidis
- Undated
- AAD Fellow
- ASDS Fellow
- Super Doc
Source: Dmand AI Professional Profile Data
Gregory A. Nikolaidis graduated from Baylor College Of Medicine
Gregory Nikolaidis graduated from Baylor College Of Medicine in 1995. Gregory Nikolaidis is a member of AAD and ASDS.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Gregory A. Nikolaidis accepts plans from 12 insurance carriers
Gregory Nikolaidis is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- Alliant Health Plans
- +4 more carriersWith a free account
Plan types Gregory Nikolaidis accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Gregory A. Nikolaidis'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Gregory A. Nikolaidis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory A. Nikolaidis' NPI number?
Gregory A. Nikolaidis' NPI number is 1033181813. It was assigned on February 6, 2006, and it is active in the NPI Registry.
What does Gregory A. Nikolaidis specialize in?
Gregory A. Nikolaidis is a dermatologist in Mission Viejo, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Gregory A. Nikolaidis practice?
Gregory Nikolaidis practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. Gregory Nikolaidis' primary practice is Mission Hospital - Unit in Mission Viejo, California. Dmand AI also links Gregory Nikolaidis to 1 physician office and 1 group practice or clinic.
What is Gregory A. Nikolaidis' office phone number?
The practice phone on file for Gregory Nikolaidis is (949) 365-2447.
What is Gregory A. Nikolaidis' medical license number?
Gregory Nikolaidis holds Texas license L3414, one of the licenses on file in 2 states.
Which states has Gregory A. Nikolaidis been licensed in?
Dmand AI has state licenses on file for Gregory Nikolaidis in Texas (2002 to 2026) and California (1997 to 2026).
What medical group is Gregory A. Nikolaidis part of?
Gregory Nikolaidis is linked to Westlake Dermatology & Cosmetic Surgery.
Is Gregory A. Nikolaidis board certified?
Yes. Gregory Nikolaidis is board certified in dermatology by the American Board of Dermatology.
Where did Gregory A. Nikolaidis go to medical school?
Gregory Nikolaidis graduated from Baylor College Of Medicine in 1995.
Has Gregory A. Nikolaidis received payments from drug or device companies?
CMS Open Payments shows $90,572 in general payments to Gregory Nikolaidis from 23 companies from 2016 to 2025. The largest total came from Allergan Inc.
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How long has Gregory A. Nikolaidis been practicing?
Gregory Nikolaidis graduated from medical school in 1995, 31 years ago.
Does Gregory A. Nikolaidis do research?
Dmand AI links 2 publications to Gregory Nikolaidis.
Who does Gregory A. Nikolaidis publish with?
Gregory Nikolaidis' most frequent co-authors are Darrell Spencer Rigel, MD (1 shared paper), Laura Michelle Speck, MD (1 shared paper) and Richard R. Winkelmann, DO (1 shared paper).
What insurance does Gregory A. Nikolaidis accept?
Gregory Nikolaidis is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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