Dr. Janina Kathleen Gregorski, MD
- Medicare services, 2024
- 82
- Medicare patients, 2024
- 67
- Part D claims, 2024
- 16
- MIPS score, 2024
- 84
- Medical groups
- 2
- Practice address
- 8901 Rockville Pike, Bethesda, MD 20889
- Practice phone
- Call (301) 295-4934
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Walter Reed National Military Medical Center
Bethesda, Maryland
Find Dr. Gregorski's professional email, personal email and mobile number
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Dr. Janina Kathleen Gregorski is an emergency medicine physician in Bethesda, Maryland
Dr. Gregorski practices at Walter Reed National Military Medical Center in Bethesda, Maryland.
Dr. Gregorski's NPI, 1932636289, was assigned on May 17, 2017. Dr. Gregorski holds Virginia license 0101266124.
- NPI
- 1932636289NPI Registry (opens in a new tab)
- NPI enumeration date
- May 17, 2017
- NPI status
- Active
- Practice phone
- (301) 295-4934
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Janina Kathleen Gregorski practices at Walter Reed National Military Medical Center in Bethesda, Maryland
Dr. Gregorski's primary practice is Walter Reed National Military Medical Center, at 8901 Rockville Pike, Bethesda, MD 20889 in Montgomery County. The practice phone is (301) 295-4934.
- Walter Reed National Military Medical Center8901 Rockville Pike, Bethesda, MD 20889 · Montgomery CountyPhone(301) 295-4934
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Janina Kathleen Gregorski is affiliated with 1 site of care and 2 medical groups
Dr. Gregorski's primary practice is Walter Reed National Military Medical Center in Bethesda, Maryland. The medical group on file is Hospitalist Medicine Physicians of Maryland PC. Dmand AI also links Dr. Gregorski to 1 more medical group, 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. Janina Kathleen Gregorski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregorski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Walter Reed National Military 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. Janina Kathleen Gregorski is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Gregorski's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Gregorski is licensed in Virginia.
Specialties and state licenses
- Emergency medicine, VirginiaPrimary
Emergency medicine physicians near Dr. Gregorski
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. Janina Kathleen Gregorski billed Medicare for 82 services in 2024
CMS data shows 82 Medicare services from Dr. Gregorski across 2 procedure codes in 2024, for 67 Medicare patients. Medicare paid $7,845 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gregorski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 162024: 63294%
- Tests and treatments
- 2023: 02024: 19
Dr. Gregorski compared with the Maryland median for emergency medicine physicians, 2024
- Dr. Gregorski
- Maryland median
- Medicare services
- 82vs 30073% below
- Medicare patients
- 67vs 29277% below
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Gregorski'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. Janina Kathleen Gregorski treated 67 Medicare patients in 2024, average age 75
CMS counts 67 Medicare patients who saw Dr. Gregorski in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.08, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Dr. Gregorski's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gregorski's Medicare patients by sex, 2024
- Women3654%
- Men3146%
Chronic conditions among Dr. Gregorski's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes51%
- Anxiety49%
- Chronic kidney disease49%
- Depression46%
- Mood disorders46%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Janina Kathleen Gregorski wrote 16 Medicare Part D claims in 2024
In 2024, Dr. Gregorski wrote 16 Medicare Part D claims for 13 patients. 94% of them were for generic drugs.
Dr. Gregorski's Part D claims by kind of drug, 2024
- Generic15 claims94%
- Brand-name and other1 claims6%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Janina Kathleen Gregorski 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. Gregorski for performance year 2024, reported as part of a group.
Dr. Gregorski's MIPS scores, performance year 2024
- 84of 100Final score
- 84of 100Quality
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Dr. Janina Kathleen Gregorski'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 | Medicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| 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. Janina Kathleen Gregorski
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What is Dr. Janina Kathleen Gregorski's NPI number?
Dr. Janina Kathleen Gregorski's NPI number is 1932636289. It was assigned on May 17, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Janina Kathleen Gregorski?
Dr. Janina Kathleen Gregorski is an emergency medicine physician in Bethesda, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Janina Kathleen Gregorski practice?
Dr. Gregorski practices at 8901 Rockville Pike, Bethesda, MD 20889. Dr. Gregorski's primary practice is Walter Reed National Military Medical Center in Bethesda, Maryland. Dmand AI also links Dr. Gregorski to 1 medical group.
What is Dr. Janina Kathleen Gregorski's office phone number?
The practice phone on file for Dr. Gregorski is (301) 295-4934.
What is Dr. Janina Kathleen Gregorski's medical license number?
Dr. Gregorski holds Virginia license 0101266124.
What medical group is Dr. Janina Kathleen Gregorski part of?
Dr. Gregorski is linked to Hospitalist Medicine Physicians of Maryland PC. Dmand AI links Dr. Gregorski to 1 more medical group.
Does Dr. Janina Kathleen Gregorski accept Medicare?
Yes. CMS data shows Dr. Gregorski billed Medicare for 82 services in 2024.
What is Dr. Janina Kathleen Gregorski's MIPS score?
Dr. Gregorski's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Janina Kathleen Gregorski see?
CMS counts 67 Medicare patients who saw Dr. Gregorski in 2024, with an average age of 75.
What services does Dr. Janina Kathleen Gregorski bill to Medicare?
In 2024, Dr. Gregorski's most billed Medicare services were emergency department visit (99285) and heart test or procedure (93010).
How long has Dr. Janina Kathleen Gregorski been practicing?
Dr. Gregorski's NPI was assigned in 2017.
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