Dr. Leah D. Creahan, MD
- Medicare services, 2024
- 307
- Medicare patients, 2024
- 204
- Part D claims, 2024
- 357
- Hospital affiliations
- 3
- Industry payments
- $5,148
- Practice address
- 101 Main St, Medford, MA 02155
- Practice phone
- Call (781) 338-7521
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hallmark Health Medical Associates Inc
Medford, Massachusetts
Find Dr. Creahan's professional email, personal email and mobile number
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Dr. Leah D. Creahan is a gastroenterologist in Medford, Massachusetts
Dr. Creahan practices at Hallmark Health Medical Associates Inc in Medford, Massachusetts.
Dr. Creahan's NPI, 1629500921, was assigned on March 28, 2017. Dr. Creahan graduated from University of Massachusetts Medical School in 2017. Dr. Creahan holds Massachusetts license 282807.
- NPI
- 1629500921NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749555936
- NPI enumeration date
- March 28, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (781) 338-7521
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leah D. Creahan practices at Hallmark Health Medical Associates Inc in Medford, Massachusetts
Dr. Creahan's primary practice is Hallmark Health Medical Associates Inc, at 101 Main St, Medford, MA 02155 in Middlesex County. The practice phone is (781) 338-7521.
- Hallmark Health Medical Associates Inc101 Main St, Medford, MA 02155 · Middlesex CountyPhone(781) 338-7521
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leah D. Creahan is affiliated with 7 sites of care and 3 medical groups
Dr. Creahan's primary practice is Hallmark Health Medical Associates Inc in Medford, Massachusetts. Dr. Creahan is also affiliated with Tufts Medical Center. The medical group on file is Tufts Medical Center Community Care. Dmand AI also links Dr. Creahan to 2 more hospitals, 3 group practices and clinics and 2 medical groups, 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. Leah D. Creahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Creahan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hallmark Health Medical Associates Inc | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leah D. Creahan is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Creahan's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Creahan is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Creahan
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. Leah D. Creahan billed Medicare for 307 services in 2024
CMS data shows 307 Medicare services from Dr. Creahan across 10 procedure codes in 2024, for 204 Medicare patients. Medicare paid $31,155 for them.
Dr. Creahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1062024: 217105%
- Surgery
- 2023: 522024: 7850%
- Other services
- 2023: 02024: 12
Where Dr. Creahan's Medicare services took place, 2024
- In an office15550%
- In a facility15250%
Dr. Creahan compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Creahan
- Massachusetts median
- Medicare services
- 307vs 51941% below
- Medicare patients
- 204vs 34341% below
- Part D claims
- 276vs 3008% below
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Creahan'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. Creahan and other gastroenterologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leah D. Creahan treated 204 Medicare patients in 2024, average age 75
CMS counts 204 Medicare patients who saw Dr. Creahan in 2024. The largest group is 65 to 74, with 94 patients. 73% of them have high cholesterol, and 70% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Creahan's median patient age at 57, with 62% women.
Dr. Creahan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Creahan's Medicare patients by sex, 2024
- Women14973%
- Men5527%
Chronic conditions among Dr. Creahan's Medicare patients, 2024
- High cholesterol73%
- High blood pressure70%
- Arthritis42%
- Mood disorders32%
- Anxiety30%
- Depression30%
- Atrial fibrillation26%
- Osteoporosis25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Creahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leah D. Creahan wrote 357 Medicare Part D claims in 2024
In 2024, Dr. Creahan wrote 357 Medicare Part D claims for 170 patients. 80% of them were for generic drugs. CMS names the drug for 276 of them, across 8 drugs with 11 or more claims each, at $40,410 in total drug cost. In 2023, CMS named 60 claims across 3 drugs.
Dr. Creahan's Part D claims by kind of drug, 2024
- Generic287 claims80%
- Brand-name70 claims20%
Dr. Creahan'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: 602024: 276360%
Drugs named by CMS: 8 in 2024, 3 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. Leah D. Creahan ranks in the 57th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Creahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Creahan as offering telehealth. CMS counts 33 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Creahan, more than 57% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Creahan ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 57th percentile33 procedures
- Colonoscopy
- 55th percentile33 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Leah D. Creahan received $5,148 in industry payments from 2022 to 2025
CMS Open Payments shows 235 general payments to Dr. Creahan from 29 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $907.
General payments to Dr. Creahan by program year, 2022 to 2025
General payments to Dr. Creahan by kind, 2022 to 2025
- Food and beverage$5,136100%
- Education$120%
Companies that paid Dr. Creahan the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leah D. Creahan graduated from University of Massachusetts Medical School
Dr. Creahan graduated from University of Massachusetts Medical School in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Leah D. Creahan'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)Doctors and Clinicians Utilization Data (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. Leah D. Creahan
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. Leah D. Creahan's NPI number?
Dr. Leah D. Creahan's NPI number is 1629500921. It was assigned on March 28, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Leah D. Creahan?
Dr. Leah D. Creahan is a gastroenterologist in Medford, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Leah D. Creahan practice?
Dr. Creahan practices at 101 Main St, Medford, MA 02155. Dr. Creahan's primary practice is Hallmark Health Medical Associates Inc in Medford, Massachusetts. Dmand AI also links Dr. Creahan to 2 hospitals, 3 group practices and clinics and 2 medical groups.
What is Dr. Leah D. Creahan's office phone number?
The practice phone on file for Dr. Creahan is (781) 338-7521.
What is Dr. Leah D. Creahan's medical license number?
Dr. Creahan holds Massachusetts license 282807.
Which hospitals is Dr. Leah D. Creahan affiliated with?
Dr. Creahan is affiliated with Tufts Medical Center. Dmand AI links Dr. Creahan to 2 more hospitals.
What medical group is Dr. Leah D. Creahan part of?
Dr. Creahan is linked to Tufts Medical Center Community Care. Dmand AI links Dr. Creahan to 2 more medical groups.
Does Dr. Leah D. Creahan accept Medicare?
Yes. CMS data shows Dr. Creahan billed Medicare for 307 services in 2024, and Dr. Creahan accepts Medicare assignment.
Does Dr. Leah D. Creahan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Creahan as offering telehealth services.
How many Medicare patients does Dr. Leah D. Creahan see?
CMS counts 204 Medicare patients who saw Dr. Creahan in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Leah D. Creahan bill to Medicare?
In 2024, Dr. Creahan's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99232) and surgery: digestive system (43239).
Where did Dr. Leah D. Creahan go to medical school?
Dr. Creahan graduated from University of Massachusetts Medical School in 2017.
What drugs does Dr. Leah D. Creahan prescribe most?
In 2024 Medicare Part D data, Dr. Creahan's most prescribed drugs by claims were Omeprazole, Ondansetron HCl and Pantoprazole Sodium.
Has Dr. Leah D. Creahan received payments from drug or device companies?
CMS Open Payments shows $5,148 in general payments to Dr. Creahan from 29 companies from 2022 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Leah D. Creahan been practicing?
Dr. Creahan graduated from medical school in 2017, 9 years ago.
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