Dr. Oscar Nicholson Jr., MD
- Medicare services, 2024
- 746
- Medicare patients, 2024
- 621
- Part D claims, 2024
- 375
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 2420 Lake Avenue, Ashtabula, OH 44004
- Practice phone
- Call (440) 997-2262
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nicholson's professional email, personal email and mobile number
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Dr. Oscar Nicholson Jr. is a general surgeon in Ashtabula, Ohio
Dr. Nicholson practices at Ashtabula Regional Medical Center in Ashtabula, Ohio, part of Ashtabula County Medical Center.
Dr. Nicholson's NPI, 1477539674, was assigned on December 20, 2005. Dr. Nicholson graduated from University of Pittsburgh School of Medicine in 1986. Dr. Nicholson holds Ohio license 35056957.
- NPI
- 1477539674NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971409491
- NPI enumeration date
- December 20, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (440) 997-2262
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Oscar Nicholson Jr. practices at Ashtabula Regional Medical Center in Ashtabula, Ohio
Dr. Nicholson's primary practice is Ashtabula Regional Medical Center, at 2420 Lake Avenue, Ashtabula, OH 44004 in Ashtabula County. The practice phone is (440) 997-2262.
- Ashtabula Regional Medical Center2420 Lake Avenue, Ashtabula, OH 44004 · Ashtabula CountyPhone(440) 997-2262
Source: Dmand AI Affiliation Data
Dr. Oscar Nicholson Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Nicholson's primary practice is Ashtabula Regional Medical Center in Ashtabula, Ohio, part of Ashtabula County Medical Center. The medical group on file is Emergency Professional Services of Ohio, Inc. Dmand AI also links Dr. Nicholson to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Oscar Nicholson Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nicholson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ashtabula Regional Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ashtabula County Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Oscar Nicholson Jr. is one of 1,056 general surgeons in Ohio
Surgery is Dr. Nicholson's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Nicholson is licensed in Ohio.
Specialties and state licenses
- Surgery, OhioPrimary
General surgeons near Dr. Nicholson
Counts of general surgeons 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. Oscar Nicholson Jr. billed Medicare for 746 services in 2024
CMS data shows 746 Medicare services from Dr. Nicholson across 4 procedure codes in 2024, for 621 Medicare patients. Medicare paid $91,733 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nicholson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6562024: 74614%
Dr. Nicholson compared with the Ohio median for general surgeons, 2024
- Dr. Nicholson
- Ohio median
- Medicare services
- 746vs 1684.4 times
- Medicare patients
- 621vs 1274.9 times
- Part D claims
- 182vs 464.0 times
Medians across 1,031 general surgeons in Ohio with Dmand AI profiles that report each measure.
Dr. Nicholson'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Oscar Nicholson Jr. treated 621 Medicare patients in 2024, average age 75
CMS counts 621 Medicare patients who saw Dr. Nicholson in 2024. The largest group is 75 to 84, with 219 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.28, 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. Nicholson's median patient age at 47, with 56% women.
Dr. Nicholson's Medicare patients by age, 2024
Dr. Nicholson's Medicare patients by sex, 2024
- Women33654%
- Men28546%
Chronic conditions among Dr. Nicholson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Anxiety43%
- Mood disorders43%
- Diabetes41%
- COPD40%
- Heart failure40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nicholson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Oscar Nicholson Jr. wrote 375 Medicare Part D claims in 2024
In 2024, Dr. Nicholson wrote 375 Medicare Part D claims for 257 patients. 90% of them were for generic drugs. CMS names the drug for 182 of them, across 8 drugs with 11 or more claims each, at $1,190 in total drug cost. In 2023, CMS named 116 claims across 6 drugs.
Dr. Nicholson's Part D claims by kind of drug, 2024
- Generic336 claims90%
- Brand-name and other39 claims10%
Dr. Nicholson'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. Nicholson's Part D claims, 2024
- Opioids6%21 of 375 claims
- Antibiotics49%185 of 375 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: 1162024: 18257%
Drugs named by CMS: 8 in 2024, 6 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
How Dr. Oscar Nicholson Jr. takes part in Medicare
Dr. Nicholson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Oscar Nicholson Jr. graduated from University of Pittsburgh School of Medicine
Dr. Nicholson graduated from University of Pittsburgh School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Oscar Nicholson Jr.'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) |
| 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. Oscar Nicholson Jr.
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. Oscar Nicholson Jr.'s NPI number?
Dr. Oscar Nicholson Jr.'s NPI number is 1477539674. It was assigned on December 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Oscar Nicholson Jr.?
Dr. Oscar Nicholson Jr. is a general surgeon in Ashtabula, Ohio. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Oscar Nicholson Jr. practice?
Dr. Nicholson practices at 2420 Lake Avenue, Ashtabula, OH 44004. Dr. Nicholson's primary practice is Ashtabula Regional Medical Center in Ashtabula, Ohio, part of Ashtabula County Medical Center. Dmand AI also links Dr. Nicholson to 1 physician office.
What is Dr. Oscar Nicholson Jr.'s office phone number?
The practice phone on file for Dr. Nicholson is (440) 997-2262.
What is Dr. Oscar Nicholson Jr.'s medical license number?
Dr. Nicholson holds Ohio license 35056957.
Which hospitals is Dr. Oscar Nicholson Jr. affiliated with?
Dr. Nicholson practices at Ashtabula Regional Medical Center in Ashtabula, Ohio.
What medical group is Dr. Oscar Nicholson Jr. part of?
Dr. Nicholson is linked to Emergency Professional Services of Ohio, Inc.
Does Dr. Oscar Nicholson Jr. accept Medicare?
Yes. CMS data shows Dr. Nicholson billed Medicare for 746 services in 2024, and Dr. Nicholson accepts Medicare assignment.
How many Medicare patients does Dr. Oscar Nicholson Jr. see?
CMS counts 621 Medicare patients who saw Dr. Nicholson in 2024, with an average age of 75.
What services does Dr. Oscar Nicholson Jr. bill to Medicare?
In 2024, Dr. Nicholson's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
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Where did Dr. Oscar Nicholson Jr. go to medical school?
Dr. Nicholson graduated from University of Pittsburgh School of Medicine in 1986.
What drugs does Dr. Oscar Nicholson Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Nicholson's most prescribed drugs by claims were Nitrofurantoin Mono-Macro, Sulfamethoxazole-Trimethoprim and Ciprofloxacin HCl.
How long has Dr. Oscar Nicholson Jr. been practicing?
Dr. Nicholson graduated from medical school in 1986, 40 years ago.
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