Dr. Stephen D. Humm, MD
- Medicare services, 2024
- 825
- Medicare patients, 2024
- 464
- Part D claims, 2024
- 1,606
- Hospital affiliations
- 1
- Industry payments
- $2,270
- Practice address
- 10801 Lockwood Drive, Suite 260, Silver Spring, MD 20901
- Practice phone
- Call (301) 439-0300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lockwood Ambulatory Surgery Center
Surgery Center - Medicare-Certified · Silver Spring, Maryland
Find Dr. Humm's professional email, personal email and mobile number
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Dr. Stephen D. Humm is a gastroenterologist in Silver Spring, Maryland
Dr. Humm practices at Lockwood Ambulatory Surgery Center in Silver Spring, Maryland.
Dr. Humm's NPI, 1134256597, was assigned on February 27, 2007. Dr. Humm graduated from Vanderbilt University School of Medicine in 2003. Dr. Humm holds Maryland license D0077877.
- NPI
- 1134256597NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587853650
- NPI enumeration date
- February 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (301) 439-0300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen D. Humm practices at Lockwood Ambulatory Surgery Center in Silver Spring, Maryland
Dr. Humm's primary practice is Lockwood Ambulatory Surgery Center, at 10801 Lockwood Drive, Suite 260, Silver Spring, MD 20901. The practice phone is (301) 439-0300.
- Lockwood Ambulatory Surgery Center10801 Lockwood Drive, Suite 260, Silver Spring, MD 20901Phone(301) 439-0300
Source: Dmand AI Affiliation Data
Dr. Stephen D. Humm is affiliated with 5 sites of care and 2 medical groups
Dr. Humm's primary practice is Lockwood Ambulatory Surgery Center in Silver Spring, Maryland. Dr. Humm is also affiliated with MedStar Montgomery Medical Center. The medical group on file is Capital Digestive Care. Dmand AI also links Dr. Humm to 2 more group practices and clinics, 1 ambulatory surgery center and 1 medical group, 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. Stephen D. Humm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Humm practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lockwood Ambulatory Surgery Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen D. Humm is one of 405 gastroenterologists in Maryland
Gastroenterology is Dr. Humm's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Humm's licenses on file in 2 states: Maryland and Massachusetts.
Specialties and state licenses
- Gastroenterology, MarylandPrimary
- Internal medicine, Massachusetts
Gastroenterologists near Dr. Humm
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. Stephen D. Humm billed Medicare for 825 services in 2024
CMS data shows 825 Medicare services from Dr. Humm across 10 procedure codes in 2024, for 464 Medicare patients. Medicare paid $93,937 for them.
Dr. Humm's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3852024: 47022%
- Surgery
- 2023: 4152024: 33120%
- Tests and treatments
- 2023: 02024: 13
- Other services
- 2023: 122024: 118%
- Imaging
- 2023: 192024: 0100%
Where Dr. Humm's Medicare services took place, 2024
- In an office48359%
- In a facility34241%
Dr. Humm compared with the Maryland median for gastroenterologists, 2024
- Dr. Humm
- Maryland median
- Medicare services
- 825vs 66824% above
- Medicare patients
- 464vs 39019% above
- Part D claims
- 1,377vs 3923.5 times
Medians across 396 gastroenterologists in Maryland with Dmand AI profiles that report each measure.
Dr. Humm'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. Humm and other gastroenterologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen D. Humm treated 464 Medicare patients in 2024, average age 75
CMS counts 464 Medicare patients who saw Dr. Humm in 2024. The largest group is 65 to 74, with 210 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 5% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Humm's median patient age at 61, with 55% women.
Dr. Humm's Medicare patients by age, 2024
Dr. Humm's Medicare patients by sex, 2024
- Women27860%
- Men18640%
Chronic conditions among Dr. Humm's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis49%
- Diabetes27%
- Ischemic heart disease25%
- Mood disorders25%
- Osteoporosis24%
- Depression22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Humm'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
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen D. Humm wrote 1,606 Medicare Part D claims in 2024
In 2024, Dr. Humm wrote 1,606 Medicare Part D claims for 371 patients. 86% of them were for generic drugs. CMS names the drug for 1,377 of them, across 26 drugs with 11 or more claims each, at $1,108,252 in total drug cost. In 2023, CMS named 1,008 claims across 22 drugs.
Dr. Humm's Part D claims by kind of drug, 2024
- Generic1,377 claims86%
- Brand-name and other229 claims14%
Dr. Humm'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. Humm's Part D claims, 2024
- Antibiotics3%45 of 1,606 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: 1,0082024: 1,37737%
Drugs named by CMS: 26 in 2024, 22 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. Stephen D. Humm ranks in the 87th percentile for colonoscopy in Medicare
Dr. Humm accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Humm as offering telehealth. CMS counts 140 procedures of colonoscopy by Dr. Humm, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Humm ranks in Medicare procedure volume
- Colonoscopy
- 87th percentile140 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 74th percentile89 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. Stephen D. Humm received $2,270 in industry payments from 2016 to 2025
CMS Open Payments shows 128 general payments to Dr. Humm from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Abbvie Inc. paid the most, $1,042.
General payments to Dr. Humm by program year, 2016 to 2025
General payments to Dr. Humm by kind, 2016 to 2025
- Food and beverage$2,19797%
- Education$733%
Companies that paid Dr. Humm 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. Stephen D. Humm graduated from Vanderbilt University School of Medicine
Dr. Humm graduated from Vanderbilt University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen D. Humm'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)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. Stephen D. Humm
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. Stephen D. Humm's NPI number?
Dr. Stephen D. Humm's NPI number is 1134256597. It was assigned on February 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen D. Humm?
Dr. Stephen D. Humm is a gastroenterologist in Silver Spring, Maryland. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Stephen D. Humm practice?
Dr. Humm practices at 10801 Lockwood Drive, Suite 260, Silver Spring, MD 20901. Dr. Humm's primary practice is Lockwood Ambulatory Surgery Center in Silver Spring, Maryland. Dmand AI also links Dr. Humm to 2 group practices and clinics, 1 ambulatory surgery center and 1 medical group.
What is Dr. Stephen D. Humm's office phone number?
The practice phone on file for Dr. Humm is (301) 439-0300.
What is Dr. Stephen D. Humm's medical license number?
Dr. Humm holds Maryland license D0077877, one of the licenses on file in 2 states.
Which states has Dr. Stephen D. Humm been licensed in?
Dmand AI has state licenses on file for Dr. Humm in Maryland and Massachusetts.
Which hospitals is Dr. Stephen D. Humm affiliated with?
Dr. Humm is affiliated with MedStar Montgomery Medical Center.
What medical group is Dr. Stephen D. Humm part of?
Dr. Humm is linked to Capital Digestive Care. Dmand AI links Dr. Humm to 1 more medical group.
Does Dr. Stephen D. Humm accept Medicare?
Yes. CMS data shows Dr. Humm billed Medicare for 825 services in 2024, and Dr. Humm accepts Medicare assignment.
Does Dr. Stephen D. Humm offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Humm as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Stephen D. Humm see?
CMS counts 464 Medicare patients who saw Dr. Humm in 2024, with an average age of 75.
What services does Dr. Stephen D. Humm bill to Medicare?
In 2024, Dr. Humm's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45380) and surgery: digestive system (45385).
Where did Dr. Stephen D. Humm go to medical school?
Dr. Humm graduated from Vanderbilt University School of Medicine in 2003.
What drugs does Dr. Stephen D. Humm prescribe most?
In 2024 Medicare Part D data, Dr. Humm's most prescribed drugs by claims were Famotidine, Pantoprazole Sodium and Omeprazole.
Has Dr. Stephen D. Humm received payments from drug or device companies?
CMS Open Payments shows $2,270 in general payments to Dr. Humm from 20 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Stephen D. Humm been practicing?
Dr. Humm graduated from medical school in 2003, 23 years ago.
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