Dr. Paul Bernhard Keiser, MD
- Medicare services, 2024
- 18,397
- Medicare patients, 2024
- 334
- Part D claims, 2024
- 543
- Industry payments
- $7,092
- Affiliated sites
- 1
- Practice address
- 14995 Shady Grove Rd, Rockville, MD 20850
- Practice phone
- Call (301) 294-8525
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Congressional Ambulatory Surgery Center, L.L.C.
Rockville, Maryland
Find Dr. Keiser'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. Paul Bernhard Keiser is an allergist and immunologist in Rockville, Maryland
Dr. Keiser practices at Congressional Ambulatory Surgery Center, L.L.C. in Rockville, Maryland.
Dr. Keiser's NPI, 1457476699, was assigned on March 20, 2007. Dr. Keiser graduated from Washington University School of Medicine in 1994. Dr. Keiser holds Maryland license D0086082.
- NPI
- 1457476699NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759570435
- NPI enumeration date
- March 20, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (301) 294-8525
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Paul Bernhard Keiser practices at Congressional Ambulatory Surgery Center, L.L.C. in Rockville, Maryland
Dr. Keiser's primary practice is Congressional Ambulatory Surgery Center, L.L.C., at 14995 Shady Grove Rd, Rockville, MD 20850 in Montgomery County. The practice phone is (301) 294-8525.
- Congressional Ambulatory Surgery Center, L.L.C.14995 Shady Grove Rd, Rockville, MD 20850 · Montgomery CountyPhone(301) 294-8525
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Paul Bernhard Keiser is affiliated with 2 sites of care and 2 medical groups
Dr. Keiser's primary practice is Congressional Ambulatory Surgery Center, L.L.C. in Rockville, Maryland. The medical group on file is AllerVie Health. Dmand AI also links Dr. Keiser to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Paul Bernhard Keiser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keiser practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Congressional Ambulatory Surgery Center, L.L.C. | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Paul Bernhard Keiser is one of 83 allergists and immunologists in Maryland
Allergy and immunology is Dr. Keiser's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dmand AI has Dr. Keiser's licenses on file in 3 states: Maryland, Pennsylvania and Virginia.
Specialties and state licenses
- Allergy and immunology, MarylandPrimary
- Pennsylvania license
- Allergy, Virginia
Allergists and immunologists near Dr. Keiser
Counts of allergists and immunologists 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. Paul Bernhard Keiser billed Medicare for 18,397 services in 2024
CMS data shows 18,397 Medicare services from Dr. Keiser across 14 procedure codes in 2024, for 334 Medicare patients. Medicare paid $351,537 for them. Every service was in an office.
Dr. Keiser's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 3,8432024: 12,750232%
- Tests and treatments
- 2023: 5,3542024: 5,5153%
- Office and hospital visits
- 2023: 1692024: 13222%
Dr. Keiser compared with the Maryland median for allergists and immunologists, 2024
- Dr. Keiser
- Maryland median
- Medicare services
- 18,397vs 1,80210.2 times
- Medicare patients
- 334vs 19472% above
- Part D claims
- 414vs 1412.9 times
Medians across 64 allergists and immunologists in Maryland with Dmand AI profiles that report each measure.
Dr. Keiser'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. Keiser?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Keiser and other allergists and immunologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Paul Bernhard Keiser treated 334 Medicare patients in 2024, average age 72
CMS counts 334 Medicare patients who saw Dr. Keiser in 2024. The largest group is 65 to 74, with 170 patients. 72% of them have high cholesterol, and 63% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Keiser's median patient age at 38, with 58% women.
Dr. Keiser's Medicare patients by age, 2024
Dr. Keiser's Medicare patients by sex, 2024
- Women21865%
- Men11635%
Chronic conditions among Dr. Keiser's Medicare patients, 2024
- High cholesterol72%
- High blood pressure63%
- Arthritis52%
- Asthma43%
- Diabetes24%
- Anxiety18%
- Chronic kidney disease18%
- Ischemic heart disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Keiser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
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. Paul Bernhard Keiser wrote 543 Medicare Part D claims in 2024
In 2024, Dr. Keiser wrote 543 Medicare Part D claims for 152 patients. 58% of them were for generic drugs. CMS names the drug for 414 of them, across 15 drugs with 11 or more claims each, at $545,969 in total drug cost. In 2023, CMS named 184 claims across 8 drugs.
Dr. Keiser's Part D claims by kind of drug, 2024
- Generic314 claims58%
- Brand-name229 claims42%
Dr. Keiser'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1842024: 414125%
Drugs named by CMS: 15 in 2024, 8 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. Paul Bernhard Keiser takes part in Medicare
Dr. Keiser 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. Paul Bernhard Keiser received $7,092 in industry payments from 2019 to 2025
CMS Open Payments shows 317 general payments to Dr. Keiser from 31 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 97% of the total. GlaxoSmithKline, LLC. paid the most, $1,883. It also lists 2 research payments totaling $1,232 from 2016 to 2018.
General payments to Dr. Keiser by program year, 2019 to 2025
General payments to Dr. Keiser by kind, 2019 to 2025
- Food and beverage$6,87897%
- Honoraria$1752%
- Education$391%
Companies that paid Dr. Keiser the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Paul Bernhard Keiser graduated from Washington University School of Medicine
Dr. Keiser graduated from Washington University School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Paul Bernhard Keiser'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) |
| 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. Paul Bernhard Keiser
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. Paul Bernhard Keiser's NPI number?
Dr. Paul Bernhard Keiser's NPI number is 1457476699. It was assigned on March 20, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Paul Bernhard Keiser?
Dr. Paul Bernhard Keiser is an allergist and immunologist in Rockville, Maryland. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Paul Bernhard Keiser practice?
Dr. Keiser practices at 14995 Shady Grove Rd, Rockville, MD 20850. Dr. Keiser's primary practice is Congressional Ambulatory Surgery Center, L.L.C. in Rockville, Maryland. Dmand AI also links Dr. Keiser to 1 group practice or clinic and 1 medical group.
What is Dr. Paul Bernhard Keiser's office phone number?
The practice phone on file for Dr. Keiser is (301) 294-8525.
What is Dr. Paul Bernhard Keiser's medical license number?
Dr. Keiser holds Maryland license D0086082, one of the licenses on file in 3 states.
Which states has Dr. Paul Bernhard Keiser been licensed in?
Dmand AI has state licenses on file for Dr. Keiser in Maryland, Pennsylvania and Virginia.
What medical group is Dr. Paul Bernhard Keiser part of?
Dr. Keiser is linked to AllerVie Health. Dmand AI links Dr. Keiser to 1 more medical group.
Does Dr. Paul Bernhard Keiser accept Medicare?
Yes. CMS data shows Dr. Keiser billed Medicare for 18,397 services in 2024, and Dr. Keiser accepts Medicare assignment.
How many Medicare patients does Dr. Paul Bernhard Keiser see?
CMS counts 334 Medicare patients who saw Dr. Keiser in 2024, with an average age of 72.
What services does Dr. Paul Bernhard Keiser bill to Medicare?
In 2024, Dr. Keiser's most billed Medicare services were injected or infused drug (J2356), injected or infused drug (J2357) and allergy test or treatment (95165).
Show 4 more questionsShow fewer questions
Where did Dr. Paul Bernhard Keiser go to medical school?
Dr. Keiser graduated from Washington University School of Medicine in 1994.
What drugs does Dr. Paul Bernhard Keiser prescribe most?
In 2024 Medicare Part D data, Dr. Keiser's most prescribed drugs by claims were Montelukast Sodium, Azelastine HCl and Panzyga.
Has Dr. Paul Bernhard Keiser received payments from drug or device companies?
CMS Open Payments shows $7,092 in general payments to Dr. Keiser from 31 companies from 2019 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Paul Bernhard Keiser been practicing?
Dr. Keiser graduated from medical school in 1994, 32 years ago.
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