Dr. Peter F. Williams, MD
- Medicare services, 2024
- 1,006
- Medicare patients, 2024
- 571
- Part D claims, 2024
- 165
- Publications
- 1
- MIPS score, 2024
- 84
- Practice address
- 2010 Health Campus Drive, Harrisonburg, VA 22801
- Practice phone
- Call (540) 689-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williams' professional email, personal email and mobile number
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Dr. Peter F. Williams is an emergency medicine physician in Rockingham, Virginia
Dr. Williams practices at Sentara RMH Medical Center in Harrisonburg, Virginia, part of Sentara Health.
Dr. Williams' NPI, 1770628505, was assigned on February 20, 2007. Dr. Williams graduated from University of Virginia School of Medicine in 2006. Dr. Williams holds Virginia license 0101245109.
- NPI
- 1770628505NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567513674
- NPI enumeration date
- February 20, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (540) 689-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter F. Williams practices at Sentara RMH Medical Center in Harrisonburg, Virginia
Dr. Williams' primary practice is Sentara RMH Medical Center, at 2010 Health Campus Drive, Harrisonburg, VA 22801 in Harrisonburg City. The practice phone is (540) 689-1000.
- Sentara RMH Medical Center2010 Health Campus Drive, Harrisonburg, VA 22801 · Harrisonburg CityPhone(540) 689-1000
Source: Dmand AI Affiliation Data
Dr. Peter F. Williams is affiliated with 1 site of care and 2 medical groups
Dr. Williams' primary practice is Sentara RMH Medical Center in Harrisonburg, Virginia, part of Sentara Health. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Dr. Williams to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter F. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sentara RMH Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter F. Williams is one of 1,686 emergency medicine physicians in Virginia
Emergency medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Williams is licensed in Virginia.
Specialties and state licenses
- Emergency medicine, VirginiaPrimary
Emergency medicine physicians near Dr. Williams
Counts of emergency medicine physicians 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. Peter F. Williams billed Medicare for 1,006 services in 2024
CMS data shows 1,006 Medicare services from Dr. Williams across 5 procedure codes in 2024, for 571 Medicare patients. Medicare paid $81,099 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5522024: 5876%
- Tests and treatments
- 2023: 3202024: 41931%
Dr. Williams compared with the Virginia median for emergency medicine physicians, 2024
- Dr. Williams
- Virginia median
- Medicare services
- 1,006vs 3113.2 times
- Medicare patients
- 571vs 30786% above
- Part D claims
- 78vs 5932% above
Medians across 1,632 emergency medicine physicians in Virginia with Dmand AI profiles that report each measure.
Dr. Williams' 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. Williams and other emergency medicine physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter F. Williams treated 571 Medicare patients in 2024, average age 77
CMS counts 571 Medicare patients who saw Dr. Williams in 2024. The largest group is 75 to 84, with 206 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.00, 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. Williams' median patient age at 49, with 57% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women30153%
- Men27047%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Anxiety45%
- Heart failure44%
- Diabetes43%
- Mood disorders43%
- Chronic kidney disease42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter F. Williams wrote 165 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 165 Medicare Part D claims for 123 patients. 95% of them were for generic drugs. CMS names the drug for 78 of them, across 5 drugs with 11 or more claims each, at $532 in total drug cost. In 2023, CMS named 70 claims across 4 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic156 claims95%
- Brand-name and other9 claims5%
Dr. Williams' 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. Williams' Part D claims, 2024
- Opioids11%18 of 165 claims
- Antibiotics38%62 of 165 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: 702024: 7811%
Drugs named by CMS: 5 in 2024, 4 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. Peter F. Williams scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Williams for performance year 2024, reported as part of a group. Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Williams' MIPS scores, performance year 2024
- 84of 100Final score
- 75.4of 100Quality
- 40of 100Improvement Activities
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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Dr. Peter F. Williams has 1 publication on record
Dmand AI links 1 paper to Dr. Williams in 2011. Dr. Williams' most frequent co-authors are Caitlin Elizabeth Wise Carter, MD, Joachim Hanno Ix, MD and Dena Evette Rifkin, MD.
Dr. Williams' most frequent co-authors
- Caitlin Elizabeth Wise Carter, MD1 shared paper
- Joachim Hanno Ix, MD1 shared paper
- Dena Evette Rifkin, MD1 shared paper
Recent publications by Dr. Williams
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter F. Williams received $80 in industry payments from 2016 to 2019
CMS Open Payments shows 3 general payments to Dr. Williams from 3 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $45.
General payments to Dr. Williams by program year, 2016 to 2019
Companies that paid Dr. Williams the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter F. Williams graduated from University of Virginia School of Medicine
Dr. Williams graduated from University of Virginia School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter F. Williams'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)Clinician Public Reporting: Overall MIPS Performance (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. Peter F. Williams
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. Peter F. Williams' NPI number?
Dr. Peter F. Williams' NPI number is 1770628505. It was assigned on February 20, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter F. Williams?
Dr. Peter F. Williams is an emergency medicine physician in Rockingham, Virginia. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Peter F. Williams practice?
Dr. Williams practices at 2010 Health Campus Drive, Harrisonburg, VA 22801. Dr. Williams' primary practice is Sentara RMH Medical Center in Harrisonburg, Virginia, part of Sentara Health. Dmand AI also links Dr. Williams to 1 medical group.
What is Dr. Peter F. Williams' office phone number?
The practice phone on file for Dr. Williams is (540) 689-1000.
What is Dr. Peter F. Williams' medical license number?
Dr. Williams holds Virginia license 0101245109.
Which hospitals is Dr. Peter F. Williams affiliated with?
Dr. Williams practices at Sentara RMH Medical Center in Harrisonburg, Virginia.
What medical group is Dr. Peter F. Williams part of?
Dr. Williams is linked to Emergency Medicine Physicians (EMP). Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Peter F. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 1,006 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. Peter F. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Peter F. Williams see?
CMS counts 571 Medicare patients who saw Dr. Williams in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
What services does Dr. Peter F. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Where did Dr. Peter F. Williams go to medical school?
Dr. Williams graduated from University of Virginia School of Medicine in 2006.
What drugs does Dr. Peter F. Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Cefdinir, Cephalexin and Ondansetron ODT.
Has Dr. Peter F. Williams received payments from drug or device companies?
CMS Open Payments shows $80 in general payments to Dr. Williams from 3 companies from 2016 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Peter F. Williams been practicing?
Dr. Williams graduated from medical school in 2006, 20 years ago.
Does Dr. Peter F. Williams do research?
Dmand AI links 1 publication to Dr. Williams.
Who does Dr. Peter F. Williams publish with?
Dr. Williams' most frequent co-authors are Caitlin Elizabeth Wise Carter, MD (1 shared paper), Joachim Hanno Ix, MD (1 shared paper) and Dena Evette Rifkin, MD (1 shared paper).
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