Dr. Diana Deangelis Parnell, MD
- Medicare services, 2024
- 433
- Medicare patients, 2024
- 157
- Part D claims, 2024
- 115
- MIPS score, 2024
- 85
- Industry payments
- $3,336
- Practice address
- 525 South Dr, Mountain View, CA 94040
- Practice phone
- Call (408) 369-5600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Orchard Creek Surgery Center - San Jose
Mountain View, California
Find Dr. Parnell'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. Diana Deangelis Parnell is a dermatologist in Mountain View, California
Dr. Parnell practices at Orchard Creek Surgery Center - San Jose in Mountain View, California.
Dr. Parnell's NPI, 1811926652, was assigned on July 2, 2006. Dr. Parnell graduated from Georgetown University School of Medicine in 1965. Dr. Parnell holds California license G18571.
- NPI
- 1811926652NPI Registry (opens in a new tab)
- NPI enumeration date
- July 2, 2006
- NPI status
- Active
- Practice phone
- (408) 369-5600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 87
- Medical school graduation
- 1965
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Diana Deangelis Parnell practices at Orchard Creek Surgery Center - San Jose in Mountain View, California
Dr. Parnell's primary practice is Orchard Creek Surgery Center - San Jose, at 525 South Dr, Mountain View, CA 94040 in Santa Clara County. The practice phone is (408) 369-5600.
- Orchard Creek Surgery Center - San Jose525 South Dr, Mountain View, CA 94040 · Santa Clara CountyPhone(408) 369-5600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Diana Deangelis Parnell is affiliated with 3 sites of care and 1 medical group
Dr. Parnell's primary practice is Orchard Creek Surgery Center - San Jose in Mountain View, California. The medical group on file is Schweiger Dermatology Group, San Pedro. Dmand AI also links Dr. Parnell to 1 more physician office and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Diana Deangelis Parnell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Parnell practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orchard Creek Surgery Center - San Jose | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diana Deangelis Parnell is one of 1,910 dermatologists in California
Dermatology is Dr. Parnell's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Parnell is licensed in California.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
Dermatologists near Dr. Parnell
Counts of dermatologists 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. Diana Deangelis Parnell billed Medicare for 433 services in 2024
CMS data shows 433 Medicare services from Dr. Parnell across 5 procedure codes in 2024, for 157 Medicare patients. Medicare paid $21,065 for them. Every service was in an office.
Dr. Parnell's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Surgery
- 2022: 2,0932024: 26887%
- Office and hospital visits
- 2022: 1,0162024: 16584%
- Drugs given in the office
- 2022: 1252024: 0100%
- Lab and pathology
- 2022: 212024: 0100%
Dr. Parnell compared with the California median for dermatologists, 2024
- Dr. Parnell
- California median
- Medicare services
- 433vs 1,75075% below
- Medicare patients
- 157vs 37758% below
- Part D claims
- 26vs 36793% below
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Parnell'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. Parnell and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diana Deangelis Parnell treated 157 Medicare patients in 2024, average age 79
CMS counts 157 Medicare patients who saw Dr. Parnell in 2024. The largest group is 75 to 84, with 77 patients. 73% of them have high cholesterol, and 57% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Parnell's median patient age at 81, with 64% women.
Dr. Parnell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Parnell's Medicare patients by sex, 2024
- Women10265%
- Men5535%
Chronic conditions among Dr. Parnell's Medicare patients, 2024
- High cholesterol73%
- High blood pressure57%
- Arthritis47%
- Ischemic heart disease25%
- Osteoporosis24%
- Cancer22%
- Anxiety17%
- Atrial fibrillation17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Parnell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women64%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Diana Deangelis Parnell wrote 115 Medicare Part D claims in 2024
In 2024, Dr. Parnell wrote 115 Medicare Part D claims for 44 patients. 93% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $3,748 in total drug cost. In 2023, CMS named 87 claims across 7 drugs.
Dr. Parnell's Part D claims by kind of drug, 2024
- Generic107 claims93%
- Brand-name and other8 claims7%
Dr. Parnell'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 872024: 2670%
Drugs named by CMS: 2 in 2024, 7 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. Diana Deangelis Parnell scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Parnell for performance year 2024, reported as part of a group.
Dr. Parnell's MIPS scores, performance year 2024
- 85of 100Final score
- 90.8of 100Quality
- 87of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Diana Deangelis Parnell received $3,336 in industry payments from 2016 to 2025
CMS Open Payments shows 57 general payments to Dr. Parnell from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Incyte Corporation paid the most, $374.
General payments to Dr. Parnell by program year, 2016 to 2025
Companies that paid Dr. Parnell the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diana Deangelis Parnell graduated from Georgetown University School of Medicine
Dr. Parnell graduated from Georgetown University School of Medicine in 1965.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Diana Deangelis Parnell'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Dr. Diana Deangelis Parnell
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. Diana Deangelis Parnell's NPI number?
Dr. Diana Deangelis Parnell's NPI number is 1811926652. It was assigned on July 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diana Deangelis Parnell?
Dr. Diana Deangelis Parnell is a dermatologist in Mountain View, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Diana Deangelis Parnell practice?
Dr. Parnell practices at 525 South Dr, Mountain View, CA 94040. Dr. Parnell's primary practice is Orchard Creek Surgery Center - San Jose in Mountain View, California. Dmand AI also links Dr. Parnell to 1 physician office and 1 ambulatory surgery center.
What is Dr. Diana Deangelis Parnell's office phone number?
The practice phone on file for Dr. Parnell is (408) 369-5600.
What is Dr. Diana Deangelis Parnell's medical license number?
Dr. Parnell holds California license G18571.
What medical group is Dr. Diana Deangelis Parnell part of?
Dr. Parnell is linked to Schweiger Dermatology Group, San Pedro.
Does Dr. Diana Deangelis Parnell accept Medicare?
Yes. CMS data shows Dr. Parnell billed Medicare for 433 services in 2024.
What is Dr. Diana Deangelis Parnell's MIPS score?
Dr. Parnell's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Diana Deangelis Parnell see?
CMS counts 157 Medicare patients who saw Dr. Parnell in 2024, with an average age of 79.
What services does Dr. Diana Deangelis Parnell bill to Medicare?
In 2024, Dr. Parnell's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
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Where did Dr. Diana Deangelis Parnell go to medical school?
Dr. Parnell graduated from Georgetown University School of Medicine in 1965.
What drugs does Dr. Diana Deangelis Parnell prescribe most?
In 2024 Medicare Part D data, Dr. Parnell's most prescribed drugs by claims were Clobetasol Propionate and Aliskiren.
Has Dr. Diana Deangelis Parnell received payments from drug or device companies?
CMS Open Payments shows $3,336 in general payments to Dr. Parnell from 26 companies from 2016 to 2025. The largest total came from Incyte Corporation.
How long has Dr. Diana Deangelis Parnell been practicing?
Dr. Parnell graduated from medical school in 1965, 61 years ago.
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