Sydney Renee Nidiffer, PA-C
- Medicare patients, 2024
- 657
- Part D claims, 2024
- 711
- MIPS score, 2024
- 85
- Industry payments
- $1,421
- Affiliated sites
- 1
- Practice address
- 1706 St Julian Pl, Columbia, SC 29204
- Practice phone
- Call (803) 771-7506
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Carolina Dermatology Grp
Columbia, South Carolina
Find Sydney Nidiffer's professional email, personal email and mobile number
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Sydney Renee Nidiffer is a physician assistant in Columbia, South Carolina
Sydney Nidiffer practices at Carolina Dermatology Grp in Columbia, South Carolina.
Sydney Nidiffer's NPI, 1861101321, was assigned on November 22, 2022. Sydney Nidiffer graduated from Medical University of South Carolina College of Medicine in 2022. Sydney Nidiffer holds South Carolina license 4660.
- NPI
- 1861101321NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870963432
- NPI enumeration date
- November 22, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 771-7506
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Sydney Renee Nidiffer practices at Carolina Dermatology Grp in Columbia, South Carolina
Sydney Nidiffer's primary practice is Carolina Dermatology Grp, at 1706 St Julian Pl, Columbia, SC 29204 in Richland County. The practice phone is (803) 771-7506.
- Carolina Dermatology Grp1706 St Julian Pl, Columbia, SC 29204 · Richland CountyPhone(803) 771-7506
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Sydney Renee Nidiffer is affiliated with 2 sites of care and 1 medical group
Sydney Nidiffer's primary practice is Carolina Dermatology Grp in Columbia, South Carolina. The medical group on file is Carolinas Dermatology Group. Dmand AI also links Sydney Nidiffer to 1 more group practice or clinic, 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 Sydney Renee Nidiffer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sydney Nidiffer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Carolina Dermatology Grp | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Sydney Renee Nidiffer is one of 1,888 physician assistants in South Carolina
Physician assistant is Sydney Nidiffer's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Sydney Nidiffer is licensed in South Carolina.
Specialties and state licenses
- Physician assistant, South CarolinaPrimary
Physician assistants near Sydney Nidiffer
Counts of physician assistants 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
Sydney Renee Nidiffer treated 657 Medicare patients in 2024, average age 73
CMS counts 657 Medicare patients who saw Sydney Nidiffer in 2024. The largest group is 65 to 74, with 341 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 3% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Sydney Nidiffer's median patient age at 56, with 73% women.
Sydney Nidiffer's Medicare patients by age, 2024
Sydney Nidiffer's Medicare patients by sex, 2024
- Women42565%
- Men23235%
Chronic conditions among Sydney Nidiffer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes29%
- Anxiety25%
- Ischemic heart disease25%
- Mood disorders19%
- Chronic kidney disease18%
Share of Medicare patients with each condition. A patient can have several.
Sydney Nidiffer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women73%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sydney Renee Nidiffer wrote 711 Medicare Part D claims in 2024
In 2024, Sydney Nidiffer wrote 711 Medicare Part D claims for 254 patients. 93% of them were for generic drugs.
Sydney Nidiffer's Part D claims by kind of drug, 2024
- Generic664 claims93%
- Brand-name47 claims7%
Drug classes CMS tracks in Sydney Nidiffer's Part D claims, 2024
- Antibiotics10%72 of 711 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Sydney Renee Nidiffer 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 Sydney Nidiffer for performance year 2024, reported as part of a group. Sydney Nidiffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Sydney Nidiffer's MIPS scores, performance year 2024
- 85of 100Final score
- 84.6of 100Quality
- 74of 100Promoting Interoperability
- 40of 100Improvement Activities
- 87of 100Cost
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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Sydney Renee Nidiffer received $1,421 in industry payments in 2025
CMS Open Payments shows 62 general payments to Sydney Nidiffer from 19 drug and device companies in 2025. Food and beverage make up the largest share, 90% of the total. Arcutis Biotherapeutics, Inc. paid the most, $289.
General payments to Sydney Nidiffer by kind, 2025 to 2025
- Food and beverage$1,28190%
- Education$14010%
Companies that paid Sydney Nidiffer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sydney Renee Nidiffer graduated from Medical University of South Carolina College of Medicine
Sydney Nidiffer graduated from Medical University of South Carolina College of Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Sydney Renee Nidiffer'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 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 (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) |
| 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 Sydney Renee Nidiffer
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What is Sydney Renee Nidiffer's NPI number?
Sydney Renee Nidiffer's NPI number is 1861101321. It was assigned on November 22, 2022, and it is active in the NPI Registry.
What does Sydney Renee Nidiffer specialize in?
Sydney Renee Nidiffer is a physician assistant in Columbia, South Carolina. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Sydney Renee Nidiffer practice?
Sydney Nidiffer practices at 1706 St Julian Pl, Columbia, SC 29204. Sydney Nidiffer's primary practice is Carolina Dermatology Grp in Columbia, South Carolina. Dmand AI also links Sydney Nidiffer to 1 group practice or clinic.
What is Sydney Renee Nidiffer's office phone number?
The practice phone on file for Sydney Nidiffer is (803) 771-7506.
What is Sydney Renee Nidiffer's medical license number?
Sydney Nidiffer holds South Carolina license 4660.
What medical group is Sydney Renee Nidiffer part of?
Sydney Nidiffer is linked to Carolinas Dermatology Group.
Does Sydney Renee Nidiffer accept Medicare?
Yes. CMS lists Sydney Nidiffer as accepting Medicare assignment.
What is Sydney Renee Nidiffer's MIPS score?
Sydney Nidiffer's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Sydney Renee Nidiffer see?
CMS counts 657 Medicare patients who saw Sydney Nidiffer in 2024, with an average age of 73.
Where did Sydney Renee Nidiffer go to medical school?
Sydney Nidiffer graduated from Medical University of South Carolina College of Medicine in 2022.
Has Sydney Renee Nidiffer received payments from drug or device companies?
CMS Open Payments shows $1,421 in general payments to Sydney Nidiffer from 19 companies from 2025 to 2025. The largest total came from Arcutis Biotherapeutics, Inc.
How long has Sydney Renee Nidiffer been practicing?
Sydney Nidiffer graduated from medical school in 2022, 4 years ago.
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