Annu Int Conf IEEE Eng Med Biol Soc
Body Mass IndexCritical CareHeart Failure
Dr. Robert A. Shaffer, MD
NPI1528002151PAC ID6103866132
- Medicare services, 2024
- 879
- Medicare patients, 2024
- 435
- Part D claims, 2024
- 2,859
- Publications
- 1
- MIPS score, 2024
- 82
- Practice address
- 52 Medical Park Drive East, Birmingham, AL 35235
- Practice phone
- Call (205) 838-3888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OSE Surgery Center
Surgery Center - Medicare-Certified · Birmingham, Alabama
Find Dr. Shaffer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert A. Shaffer is a gastroenterologist in Birmingham, Alabama
Dr. Shaffer practices at OSE Surgery Center in Birmingham, Alabama.
Dr. Shaffer's NPI, 1528002151, was assigned on June 15, 2006. Dr. Shaffer graduated from University of Alabama School of Medicine in 1999. Dr. Shaffer holds Alabama license 26010.
NPI and contact details
- NPI
- 1528002151NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103866132
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (205) 838-3888
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert A. Shaffer practices at OSE Surgery Center in Birmingham, Alabama
Dr. Shaffer's primary practice is OSE Surgery Center, at 52 Medical Park Drive East, Birmingham, AL 35235. The practice phone is (205) 838-3888.
- OSE Surgery Center52 Medical Park Drive East, Birmingham, AL 35235Phone(205) 838-3888
Source: Dmand AI Affiliation Data
Dr. Robert A. Shaffer is affiliated with 3 sites of care and 1 medical group
Dr. Shaffer's primary practice is OSE Surgery Center in Birmingham, Alabama. Dr. Shaffer is also affiliated with UAB St. Vincent's East. The medical group on file is Birmingham Gastroenterology Associates. Dmand AI also links Dr. Shaffer to 1 more group practice or clinic, named with a free account.
OSE Surgery CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert A. Shaffer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shaffer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSE Surgery Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Shaffer practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert A. Shaffer is one of 206 gastroenterologists in Alabama
Gastroenterology is Dr. Shaffer's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Shaffer is licensed in Alabama.
Specialties and state licenses
- Gastroenterology, AlabamaPrimary
Gastroenterologists near Dr. Shaffer
Counts of gastroenterologists 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. Robert A. Shaffer billed Medicare for 879 services in 2024
CMS data shows 879 Medicare services from Dr. Shaffer across 16 procedure codes in 2024, for 435 Medicare patients. Medicare paid $72,980 for them.
Medicare services, 2024879
Medicare patients435
Paid by Medicare$72,980
Procedure codes16
Dr. Shaffer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2052024: 427108%
- Surgery
- 2023: 3912024: 4136%
- Other services
- 2023: 492024: 2451%
- Imaging
- 2023: 202024: 1525%
Where Dr. Shaffer's Medicare services took place, 2024
- In an office33438%
- In a facility54562%
Dr. Shaffer compared with the Alabama median for gastroenterologists, 2024
- Dr. Shaffer
- Alabama median
- Medicare services
- 879vs 48083% above
- Medicare patients
- 435vs 28752% above
- Part D claims
- 2,543vs 6114.2 times
Medians across 207 gastroenterologists in Alabama with Dmand AI profiles that report each measure.
Dr. Shaffer'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.
Need commercial claims for Dr. Shaffer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shaffer and other gastroenterologists in Alabama.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert A. Shaffer treated 435 Medicare patients in 2024, average age 73
CMS counts 435 Medicare patients who saw Dr. Shaffer in 2024. The largest group is 65 to 74, with 201 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.66, 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. Shaffer's median patient age at 65, with 58% women.
Medicare patients, 2024435
Average age73
Average risk score1.66
Also on Medicaid10%
Dr. Shaffer's Medicare patients by age, 2024
Dr. Shaffer's Medicare patients by sex, 2024
- Women26260%
- Men17340%
Chronic conditions among Dr. Shaffer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Chronic kidney disease38%
- Diabetes37%
- Ischemic heart disease37%
- Mood disorders36%
- Depression35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shaffer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert A. Shaffer wrote 2,859 Medicare Part D claims in 2024
In 2024, Dr. Shaffer wrote 2,859 Medicare Part D claims for 916 patients. 75% of them were for generic drugs. CMS names the drug for 2,543 of them, across 43 drugs with 11 or more claims each, at $1,276,133 in total drug cost. In 2023, CMS named 2,512 claims across 47 drugs.
Part D claims, 20242,859
Drugs named by CMS43
Total drug cost$1.3M
Part D patients916
Dr. Shaffer's Part D claims by kind of drug, 2024
- Generic2,148 claims75%
- Brand-name and other711 claims25%
Dr. Shaffer'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. Shaffer's Part D claims, 2024
- Opioids1%25 of 2,859 claims
- Antibiotics4%108 of 2,859 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: 2,5122024: 2,5431%
Drugs named by CMS: 43 in 2024, 47 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. Robert A. Shaffer scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Shaffer for performance year 2024, reported as part of a group. Dr. Shaffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 358 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Shaffer, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Shaffer's MIPS scores, performance year 2024
- 82of 100Final score
- 61.9of 100Quality
- 97of 100Promoting Interoperability
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Shaffer ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 97th percentile358 procedures
- Colonoscopy
- 96th percentile257 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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)
For MedTech and pharma teams
Find gastroenterologists like Dr. Shaffer by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Robert A. Shaffer has 1 publication on record
Dmand AI links 1 paper to Dr. Shaffer. Dr. Shaffer's most frequent co-author is Joydeep Ghosh, MD.
Papers1
Dr. Shaffer's most frequent co-authors
Recent publications by Dr. Shaffer
See who Dr. Shaffer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shaffer works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert A. Shaffer received $1,616,126 in industry payments from 2016 to 2025
CMS Open Payments shows 2,521 general payments to Dr. Shaffer from 42 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 74% of the total. Allergan Inc. paid the most, $454,925.
General payments to Dr. Shaffer by program year, 2016 to 2025
General payments to Dr. Shaffer by kind, 2016 to 2025
$1.6Min total
- Speaker and faculty fees$1,198,31174%
- Travel and lodging$186,51012%
- Education speaker fees$115,5007%
- Food and beverage$45,6683%
- Other$66,3094%
Companies that paid Dr. Shaffer 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. Robert A. Shaffer graduated from University of Alabama School of Medicine
Dr. Shaffer graduated from University of Alabama School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert A. Shaffer'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)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. Robert A. Shaffer
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. Robert A. Shaffer's NPI number?
Dr. Robert A. Shaffer's NPI number is 1528002151. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Shaffer?
Dr. Robert A. Shaffer is a gastroenterologist in Birmingham, Alabama. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Robert A. Shaffer practice?
Dr. Shaffer practices at 52 Medical Park Drive East, Birmingham, AL 35235. Dr. Shaffer's primary practice is OSE Surgery Center in Birmingham, Alabama. Dmand AI also links Dr. Shaffer to 1 group practice or clinic.
What is Dr. Robert A. Shaffer's office phone number?
The practice phone on file for Dr. Shaffer is (205) 838-3888.
What is Dr. Robert A. Shaffer's medical license number?
Dr. Shaffer holds Alabama license 26010.
Which hospitals is Dr. Robert A. Shaffer affiliated with?
Dr. Shaffer is affiliated with UAB St. Vincent's East.
What medical group is Dr. Robert A. Shaffer part of?
Dr. Shaffer is linked to Birmingham Gastroenterology Associates.
Does Dr. Robert A. Shaffer accept Medicare?
Yes. CMS data shows Dr. Shaffer billed Medicare for 879 services in 2024, and Dr. Shaffer accepts Medicare assignment.
What is Dr. Robert A. Shaffer's MIPS score?
Dr. Shaffer's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Robert A. Shaffer see?
CMS counts 435 Medicare patients who saw Dr. Shaffer in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Robert A. Shaffer bill to Medicare?
In 2024, Dr. Shaffer's most billed Medicare services were surgery: digestive system (43239), care management and other visits (99439) and care management and other visits (99490).
Where did Dr. Robert A. Shaffer go to medical school?
Dr. Shaffer graduated from University of Alabama School of Medicine in 1999.
What drugs does Dr. Robert A. Shaffer prescribe most?
In 2024 Medicare Part D data, Dr. Shaffer's most prescribed drugs by claims were Pantoprazole Sodium, Famotidine and Sutab.
Has Dr. Robert A. Shaffer received payments from drug or device companies?
CMS Open Payments shows $1,616,126 in general payments to Dr. Shaffer from 42 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Robert A. Shaffer been practicing?
Dr. Shaffer graduated from medical school in 1999, 27 years ago.
Does Dr. Robert A. Shaffer do research?
Dmand AI links 1 publication to Dr. Shaffer.
Who does Dr. Robert A. Shaffer publish with?
Dr. Shaffer's most frequent co-authors are Joydeep Ghosh, MD (1 shared paper).
Selling to gastroenterology practices?
See gastroenterologists in Alabama by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card