Dr. Mary Sunny Jacob, MD
- Medicare services, 2022
- 100
- Part D claims, 2020
- 11
- Hospital affiliations
- 2
- Industry payments
- $25
- Medical groups
- 8
- Practice address
- 1500 Forest Glen Road, Silver Spring, MD 20910
- Practice phone
- Call (301) 754-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Jacob'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. Mary Sunny Jacob is an emergency medicine physician in Silver Spring, Maryland
Dr. Jacob practices at Holy Cross Hospital in Silver Spring, Maryland, part of Trinity Health.
Dr. Jacob's NPI, 1225321755, was assigned on May 17, 2011. Dr. Jacob graduated from Wayne State University School of Medicine in 2011. Dr. Jacob holds Maryland license D0077419.
- NPI
- 1225321755NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325261043
- NPI enumeration date
- May 17, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (301) 754-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Sunny Jacob practices at Holy Cross Hospital in Silver Spring, Maryland
Dr. Jacob's primary practice is Holy Cross Hospital, at 1500 Forest Glen Road, Silver Spring, MD 20910 in Montgomery County. The practice phone is (301) 754-7000.
- Holy Cross Hospital1500 Forest Glen Road, Silver Spring, MD 20910 · Montgomery CountyPhone(301) 754-7000
Source: Dmand AI Affiliation Data
Dr. Mary Sunny Jacob is affiliated with 8 sites of care and 8 medical groups
Dr. Jacob's primary practice is Holy Cross Hospital in Silver Spring, Maryland, part of Trinity Health. Dr. Jacob is also affiliated with MedStar Montgomery Medical Center. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Jacob to 7 more medical groups and 6 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary Sunny Jacob's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jacob practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Holy Cross Hospital | Available with a free account |
| +7 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mary Sunny Jacob is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Jacob's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Jacob is licensed in Maryland.
Specialties and state licenses
- Emergency medicine, MarylandPrimary
Emergency medicine physicians near Dr. Jacob
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. Mary Sunny Jacob billed Medicare for 100 services in 2022
CMS data shows 100 Medicare services from Dr. Jacob across 2 procedure codes in 2022. Medicare paid $19,334 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Jacob's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 3632022: 10072%
Dr. Jacob compared with the Maryland median for emergency medicine physicians, 2022
- Dr. Jacob
- Maryland median
- Medicare services
- 100vs 30067% below
- Part D claims
- 11vs 4475% below
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Jacob's most billed Medicare procedure codes, 2022
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. Jacob and other emergency medicine physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Sunny Jacob's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Jacob's median patient age at 61, with 58% women.
Dr. Jacob's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women58%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Mary Sunny Jacob wrote 11 Medicare Part D claims in 2020
In 2020, Dr. Jacob wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $69 in total drug cost. In 2019, CMS named 44 claims across 3 drugs.
Dr. Jacob's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 442020: 1175%
Drugs named by CMS: 1 in 2020, 3 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Mary Sunny Jacob takes part in Medicare
Dr. Jacob 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. Mary Sunny Jacob received $25 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Jacob from 2 drug and device companies in 2017. Food and beverage make up the largest share, 100% of the total. CSL Behring paid the most, $14.
Companies that paid Dr. Jacob the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary Sunny Jacob graduated from Wayne State University School of Medicine
Dr. Jacob graduated from Wayne State University School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary Sunny Jacob'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Mary Sunny Jacob
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. Mary Sunny Jacob's NPI number?
Dr. Mary Sunny Jacob's NPI number is 1225321755. It was assigned on May 17, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Sunny Jacob?
Dr. Mary Sunny Jacob is an emergency medicine physician in Silver Spring, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mary Sunny Jacob practice?
Dr. Jacob practices at 1500 Forest Glen Road, Silver Spring, MD 20910. Dr. Jacob's primary practice is Holy Cross Hospital in Silver Spring, Maryland, part of Trinity Health. Dmand AI also links Dr. Jacob to 7 medical groups and 6 group practices and clinics.
What is Dr. Mary Sunny Jacob's office phone number?
The practice phone on file for Dr. Jacob is (301) 754-7000.
What is Dr. Mary Sunny Jacob's medical license number?
Dr. Jacob holds Maryland license D0077419.
Which hospitals is Dr. Mary Sunny Jacob affiliated with?
Dr. Jacob practices at Holy Cross Hospital in Silver Spring, Maryland. Dr. Jacob is also affiliated with MedStar Montgomery Medical Center.
What medical group is Dr. Mary Sunny Jacob part of?
Dr. Jacob is linked to MedStar Medical Group. Dmand AI links Dr. Jacob to 7 more medical groups.
Does Dr. Mary Sunny Jacob accept Medicare?
Yes. CMS data shows Dr. Jacob billed Medicare for 100 services in 2022, and Dr. Jacob accepts Medicare assignment.
What services does Dr. Mary Sunny Jacob bill to Medicare?
In 2022, Dr. Jacob's most billed Medicare services were emergency department visit (99285) and critical care (99291).
Where did Dr. Mary Sunny Jacob go to medical school?
Dr. Jacob graduated from Wayne State University School of Medicine in 2011.
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What drugs does Dr. Mary Sunny Jacob prescribe most?
In 2020 Medicare Part D data, Dr. Jacob's most prescribed drugs by claims were Cephalexin.
Has Dr. Mary Sunny Jacob received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Jacob from 2 companies from 2017 to 2017. The largest total came from CSL Behring.
How long has Dr. Mary Sunny Jacob been practicing?
Dr. Jacob graduated from medical school in 2011, 15 years ago.
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