Arthroplasty, Replacement, KneeDenervationPain Measurement
Dr. Brian Allen Spencer, DO
NPI1861694853PAC ID6103095583
- Medicare services, 2024
- 4,719
- Medicare patients, 2024
- 504
- Part D claims, 2024
- 642
- Publications
- 2
- MIPS score, 2024
- 75
- Practice address
- 1700 Old Gatesburg Rd, State College, PA 16803
- Practice phone
- Call (814) 231-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mount Nittany Physician Group
State College, Pennsylvania
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Dr. Brian Allen Spencer is an orthopedic surgeon in State College, Pennsylvania
Dr. Spencer practices at Mount Nittany Physician Group in State College, Pennsylvania.
Dr. Spencer's NPI, 1861694853, was assigned on June 3, 2007. Dr. Spencer graduated from Philadelphia College of Osteopathic Medicine in 2011. Dr. Spencer holds Pennsylvania license OS015538.
NPI and contact details
- NPI
- 1861694853NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103095583
- NPI enumeration date
- June 3, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (814) 231-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Allen Spencer practices at Mount Nittany Physician Group in State College, Pennsylvania
Dr. Spencer's primary practice is Mount Nittany Physician Group, at 1700 Old Gatesburg Rd, State College, PA 16803 in Centre County. The practice phone is (814) 231-7000.
- Mount Nittany Physician Group1700 Old Gatesburg Rd, State College, PA 16803 · Centre CountyPhone(814) 231-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Brian Allen Spencer is affiliated with 8 sites of care and 3 medical groups
Dr. Spencer's primary practice is Mount Nittany Physician Group in State College, Pennsylvania. Dr. Spencer is also affiliated with Mount Nittany Medical Center. The medical group on file is Mount Nittany Physician Group. Dmand AI also links Dr. Spencer to 3 more hospitals, 2 home health agencies, 2 medical groups and 1 group practice or clinic, each named with a free account.
Mount Nittany Physician GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Brian Allen Spencer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spencer practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Nittany Physician Group | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Allen Spencer is one of 994 orthopedic surgeons in Pennsylvania
Orthopaedic surgery is Dr. Spencer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Spencer is licensed in Pennsylvania.
Specialties and state licenses
- Orthopaedic surgery, PennsylvaniaPrimary
Orthopedic surgeons near Dr. Spencer
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
994orthopedic surgeons in Pennsylvania
6orthopedic surgeons in State College
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Brian Allen Spencer billed Medicare for 4,719 services in 2024
CMS data shows 4,719 Medicare services from Dr. Spencer across 18 procedure codes in 2024, for 504 Medicare patients. Medicare paid $225,172 for them.
Medicare services, 20244,719
Medicare patients504
Paid by Medicare$225,172
Procedure codes18
Dr. Spencer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,9922024: 3,0081%
- Office and hospital visits
- 2023: 7192024: 7383%
- Surgery
- 2023: 5682024: 5179%
- Imaging
- 2023: 4642024: 4562%
Where Dr. Spencer's Medicare services took place, 2024
- In an office4,51196%
- In a facility2084%
Dr. Spencer compared with the Pennsylvania median for orthopedic surgeons, 2024
- Dr. Spencer
- Pennsylvania median
- Medicare services
- 4,719vs 1,1534.1 times
- Medicare patients
- 504vs 27683% above
- Part D claims
- 547vs 1025.4 times
Medians across 929 orthopedic surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Spencer'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. Brian Allen Spencer treated 504 Medicare patients in 2024, average age 75
CMS counts 504 Medicare patients who saw Dr. Spencer in 2024. The largest group is 65 to 74, with 243 patients. 75% of them have arthritis, and 75% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Spencer's median patient age at 70, with 54% women.
Medicare patients, 2024504
Average age75
Average risk score0.99
Also on Medicaid6%
Dr. Spencer's Medicare patients by age, 2024
Dr. Spencer's Medicare patients by sex, 2024
- Women31763%
- Men18737%
Chronic conditions among Dr. Spencer's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes26%
- Anxiety24%
- Ischemic heart disease24%
- Osteoporosis23%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Spencer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Allen Spencer wrote 642 Medicare Part D claims in 2024
In 2024, Dr. Spencer wrote 642 Medicare Part D claims for 314 patients. 98% of them were for generic drugs. CMS names the drug for 547 of them, across 6 drugs with 11 or more claims each, at $3,514 in total drug cost. In 2023, CMS named 520 claims across 9 drugs.
Part D claims, 2024642
Drugs named by CMS6
Total drug cost$3,514
Part D patients314
Dr. Spencer's Part D claims by kind of drug, 2024
- Generic632 claims98%
- Brand-name and other10 claims2%
Dr. Spencer'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. Spencer's Part D claims, 2024
- Opioids44%285 of 642 claims
- Antibiotics38%243 of 642 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: 5202024: 5475%
Drugs named by CMS: 6 in 2024, 9 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. Brian Allen Spencer scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Spencer for performance year 2024, reported individually. Dr. Spencer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 54 procedures of hip replacement by Dr. Spencer, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Spencer ranks in Medicare procedure volume
- Knee replacement
- 83rd percentile59 procedures
- Hip replacement
- 89th percentile54 procedures
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 80th percentile38 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Brian Allen Spencer has 2 publications on record
Dmand AI links 2 papers to Dr. Spencer, published from 2012 to 2016. Dr. Spencer's most frequent co-authors are Joseph Albert Abboud, MD, Jeffrey Jai Cherian, DO and Morad Ghani Chughtai, MD.
Papers2
Years published2012 to 2016
Dr. Spencer's most frequent co-authors
- Joseph Albert Abboud, MD1 shared paper
- Jeffrey Jai Cherian, DO1 shared paper
- Morad Ghani Chughtai, MD1 shared paper
Recent publications by Dr. Spencer
See who Dr. Spencer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Spencer works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Brian Allen Spencer received $16,416 in industry payments from 2016 to 2025
CMS Open Payments shows 53 general payments to Dr. Spencer from 13 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 52% of the total. Arthrex, Inc. paid the most, $11,562.
General payments to Dr. Spencer by program year, 2016 to 2025
General payments to Dr. Spencer by kind, 2016 to 2025
$16.4Kin total
- Consulting fees$8,52352%
- Education$3,33920%
- Travel and lodging$2,72717%
- Food and beverage$1,75211%
- Speaker and faculty fees$750%
Companies that paid Dr. Spencer 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. Brian Allen Spencer graduated from Philadelphia College of Osteopathic Medicine
Dr. Spencer graduated from Philadelphia College of Osteopathic Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Allen Spencer'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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) |
| 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. Brian Allen Spencer
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. Brian Allen Spencer's NPI number?
Dr. Brian Allen Spencer's NPI number is 1861694853. It was assigned on June 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Allen Spencer?
Dr. Brian Allen Spencer is an orthopedic surgeon in State College, Pennsylvania. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Brian Allen Spencer practice?
Dr. Spencer practices at 1700 Old Gatesburg Rd, State College, PA 16803. Dr. Spencer's primary practice is Mount Nittany Physician Group in State College, Pennsylvania. Dmand AI also links Dr. Spencer to 3 hospitals, 2 home health agencies, 2 medical groups and 1 group practice or clinic.
What is Dr. Brian Allen Spencer's office phone number?
The practice phone on file for Dr. Spencer is (814) 231-7000.
What is Dr. Brian Allen Spencer's medical license number?
Dr. Spencer holds Pennsylvania license OS015538.
Which hospitals is Dr. Brian Allen Spencer affiliated with?
Dr. Spencer is affiliated with Mount Nittany Medical Center. Dmand AI links Dr. Spencer to 3 more hospitals.
What medical group is Dr. Brian Allen Spencer part of?
Dr. Spencer is linked to Mount Nittany Physician Group. Dmand AI links Dr. Spencer to 2 more medical groups.
Does Dr. Brian Allen Spencer accept Medicare?
Yes. CMS data shows Dr. Spencer billed Medicare for 4,719 services in 2024, and Dr. Spencer accepts Medicare assignment.
What is Dr. Brian Allen Spencer's MIPS score?
Dr. Spencer's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Brian Allen Spencer see?
CMS counts 504 Medicare patients who saw Dr. Spencer in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. Brian Allen Spencer bill to Medicare?
In 2024, Dr. Spencer's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99213) and surgery: bones and joints (20610).
Where did Dr. Brian Allen Spencer go to medical school?
Dr. Spencer graduated from Philadelphia College of Osteopathic Medicine in 2011.
What drugs does Dr. Brian Allen Spencer prescribe most?
In 2024 Medicare Part D data, Dr. Spencer's most prescribed drugs by claims were Cefadroxil, Oxycodone HCl and Tramadol HCl.
Has Dr. Brian Allen Spencer received payments from drug or device companies?
CMS Open Payments shows $16,416 in general payments to Dr. Spencer from 13 companies from 2016 to 2025. The largest total came from Arthrex, Inc.
How long has Dr. Brian Allen Spencer been practicing?
Dr. Spencer graduated from medical school in 2011, 15 years ago.
Does Dr. Brian Allen Spencer do research?
Dmand AI links 2 publications to Dr. Spencer, published from 2012 to 2016.
Who does Dr. Brian Allen Spencer publish with?
Dr. Spencer's most frequent co-authors are Joseph Albert Abboud, MD (1 shared paper), Jeffrey Jai Cherian, DO (1 shared paper) and Morad Ghani Chughtai, MD (1 shared paper).
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