Dr. Patrick Joseph Shanahan, MD
- Medicare services, 2024
- 5,114
- Medicare patients, 2024
- 586
- Part D claims, 2024
- 9,500
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Practice address
- 120 Speer Rd Bldg B Bldg B, Chestertown, MD 21620-1044
- Practice phone
- Call (410) 778-9300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bay River Primary Care
Primary care practice · Chestertown, Maryland
Find Dr. Shanahan's professional email, personal email and mobile number
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Dr. Patrick Joseph Shanahan is a family medicine physician in Chestertown, Maryland
Dr. Shanahan practices at Bay River Primary Care in Chestertown, Maryland.
Dr. Shanahan's NPI, 1275512253, was assigned on January 10, 2006. Dr. Shanahan graduated from University of Virginia School of Medicine in 1986. Dr. Shanahan holds Maryland license D0036054.
- NPI
- 1275512253NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254455389
- NPI enumeration date
- January 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 778-9300
- 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. Patrick Joseph Shanahan practices at Bay River Primary Care in Chestertown, Maryland
Dr. Shanahan's primary practice is Bay River Primary Care, at 120 Speer Rd Bldg B Bldg B, Chestertown, MD 21620-1044. The practice phone is (410) 778-9300.
- Bay River Primary Care120 Speer Rd Bldg B Bldg B, Chestertown, MD 21620-1044Phone(410) 778-9300
Source: Dmand AI Affiliation Data
Dr. Patrick Joseph Shanahan is affiliated with 5 sites of care and 1 medical group
Dr. Shanahan's primary practice is Bay River Primary Care in Chestertown, Maryland. Dr. Shanahan is also affiliated with University of Maryland Shore Medical Center at Chestertown. The medical group on file is Bay River Primary Care. Dmand AI also links Dr. Shanahan to 1 more hospital and 2 home health agencies, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Patrick Joseph Shanahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shanahan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bay River Primary Care | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patrick Joseph Shanahan is one of 1,698 family medicine physicians in Maryland
Family medicine is Dr. Shanahan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Shanahan is licensed in Maryland.
Specialties and state licenses
- Family medicine, MarylandPrimary
Family medicine physicians near Dr. Shanahan
Counts of family 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. Patrick Joseph Shanahan billed Medicare for 5,114 services in 2024
CMS data shows 5,114 Medicare services from Dr. Shanahan across 17 procedure codes in 2024, for 586 Medicare patients. Medicare paid $195,042 for them. Every service was in an office.
Dr. Shanahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,3312024: 2,2344%
- Drugs given in the office
- 2023: 2,2202024: 2,1603%
- Tests and treatments
- 2023: 3272024: 3528%
- Other services
- 2023: 2562024: 31121%
- Lab and pathology
- 2023: 342024: 366%
- Surgery
- 2023: 252024: 2116%
Dr. Shanahan compared with the Maryland median for family medicine physicians, 2024
- Dr. Shanahan
- Maryland median
- Medicare services
- 5,114vs 5169.9 times
- Medicare patients
- 586vs 2082.8 times
- Part D claims
- 8,778vs 75111.7 times
Medians across 1,659 family medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Shanahan'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. Shanahan and other family medicine physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick Joseph Shanahan treated 586 Medicare patients in 2024, average age 76
CMS counts 586 Medicare patients who saw Dr. Shanahan in 2024. The largest group is 65 to 74, with 242 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shanahan's median patient age at 71, with 53% women.
Dr. Shanahan's Medicare patients by age, 2024
Dr. Shanahan's Medicare patients by sex, 2024
- Women30151%
- Men28549%
Chronic conditions among Dr. Shanahan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis39%
- Diabetes27%
- Anxiety19%
- Atrial fibrillation19%
- Ischemic heart disease18%
- Chronic kidney disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shanahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Patrick Joseph Shanahan wrote 9,500 Medicare Part D claims in 2024
In 2024, Dr. Shanahan wrote 9,500 Medicare Part D claims for 728 patients. 89% of them were for generic drugs. CMS names the drug for 8,778 of them, across 121 drugs with 11 or more claims each, at $581,969 in total drug cost. In 2023, CMS named 8,491 claims across 125 drugs.
Dr. Shanahan's Part D claims by kind of drug, 2024
- Generic8,466 claims89%
- Brand-name993 claims10%
- Other41 claims0%
Dr. Shanahan'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. Shanahan's Part D claims, 2024
- Opioids2%168 of 9,500 claims
- Antibiotics3%293 of 9,500 claims
- Antipsychotics, patients 65 and over1%129 of 9,500 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: 8,4912024: 8,7783%
Drugs named by CMS: 121 in 2024, 125 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. Patrick Joseph Shanahan scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Shanahan for performance year 2024, reported through an alternative payment model (APM). Dr. Shanahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shanahan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Shanahan's MIPS scores, performance year 2024
- 95of 100Final score
- 90.3of 100Quality
- 100of 100Promoting Interoperability
- 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. Patrick Joseph Shanahan received $9,349 in industry payments from 2016 to 2025
CMS Open Payments shows 591 general payments to Dr. Shanahan from 43 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Eli Lilly and Company paid the most, $1,268.
General payments to Dr. Shanahan by program year, 2016 to 2025
General payments to Dr. Shanahan by kind, 2016 to 2025
- Food and beverage$9,28999%
- Education$601%
Companies that paid Dr. Shanahan 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. Patrick Joseph Shanahan graduated from University of Virginia School of Medicine
Dr. Shanahan graduated from University of Virginia School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick Joseph Shanahan'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 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) |
| 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. Patrick Joseph Shanahan
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. Patrick Joseph Shanahan's NPI number?
Dr. Patrick Joseph Shanahan's NPI number is 1275512253. It was assigned on January 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick Joseph Shanahan?
Dr. Patrick Joseph Shanahan is a family medicine physician in Chestertown, Maryland. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Patrick Joseph Shanahan practice?
Dr. Shanahan practices at 120 Speer Rd Bldg B Bldg B, Chestertown, MD 21620-1044. Dr. Shanahan's primary practice is Bay River Primary Care in Chestertown, Maryland. Dmand AI also links Dr. Shanahan to 1 hospital and 2 home health agencies.
What is Dr. Patrick Joseph Shanahan's office phone number?
The practice phone on file for Dr. Shanahan is (410) 778-9300.
What is Dr. Patrick Joseph Shanahan's medical license number?
Dr. Shanahan holds Maryland license D0036054.
Which hospitals is Dr. Patrick Joseph Shanahan affiliated with?
Dr. Shanahan is affiliated with University of Maryland Shore Medical Center at Chestertown. Dmand AI links Dr. Shanahan to 1 more hospital.
What medical group is Dr. Patrick Joseph Shanahan part of?
Dr. Shanahan is linked to Bay River Primary Care.
Does Dr. Patrick Joseph Shanahan accept Medicare?
Yes. CMS data shows Dr. Shanahan billed Medicare for 5,114 services in 2024, and Dr. Shanahan accepts Medicare assignment.
Does Dr. Patrick Joseph Shanahan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shanahan as offering telehealth services.
What is Dr. Patrick Joseph Shanahan's MIPS score?
Dr. Shanahan's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Patrick Joseph Shanahan see?
CMS counts 586 Medicare patients who saw Dr. Shanahan in 2024, with an average age of 76.
What services does Dr. Patrick Joseph Shanahan bill to Medicare?
In 2024, Dr. Shanahan's most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and medicare service (G0008).
Where did Dr. Patrick Joseph Shanahan go to medical school?
Dr. Shanahan graduated from University of Virginia School of Medicine in 1986.
What drugs does Dr. Patrick Joseph Shanahan prescribe most?
In 2024 Medicare Part D data, Dr. Shanahan's most prescribed drugs by claims were Levothyroxine Sodium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Patrick Joseph Shanahan received payments from drug or device companies?
CMS Open Payments shows $9,349 in general payments to Dr. Shanahan from 43 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Patrick Joseph Shanahan been practicing?
Dr. Shanahan graduated from medical school in 1986, 40 years ago.
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