Dr. William D. Zeichner Jr., MD
- Medicare services, 2024
- 85
- Medicare patients, 2024
- 203
- Hospital affiliations
- 1
- Industry payments
- $72
- Medical groups
- 3
- Practice address
- 6701 North Charles Street, Baltimore, MD 21204
- Practice phone
- Call (443) 849-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zeichner's professional email, personal email and mobile number
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Dr. William D. Zeichner Jr. is an anesthesiologist in Towson, Maryland
Dr. Zeichner practices at Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare.
Dr. Zeichner's NPI, 1043751472, was assigned on March 18, 2017. Dr. Zeichner graduated from Louisiana State University School of Medicine in Shreveport in 2017. Dr. Zeichner holds Maryland license D0091240.
- NPI
- 1043751472NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850665498
- NPI enumeration date
- March 18, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (443) 849-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William D. Zeichner Jr. practices at Greater Baltimore Medical Center in Baltimore, Maryland
Dr. Zeichner's primary practice is Greater Baltimore Medical Center, at 6701 North Charles Street, Baltimore, MD 21204 in Baltimore County. The practice phone is (443) 849-2000.
- Greater Baltimore Medical Center6701 North Charles Street, Baltimore, MD 21204 · Baltimore CountyPhone(443) 849-2000
Source: Dmand AI Affiliation Data
Dr. William D. Zeichner Jr. is affiliated with 1 site of care and 3 medical groups
Dr. Zeichner's primary practice is Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare. The medical group on file is Anesthesia Company, LLC. Dmand AI also links Dr. Zeichner to 2 more medical groups, 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. William D. Zeichner Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zeichner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater Baltimore Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William D. Zeichner Jr. is one of 965 anesthesiologists in Maryland
Anesthesiology is Dr. Zeichner's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Zeichner is licensed in Maryland.
Specialties and state licenses
- Anesthesiology, MarylandPrimary
Anesthesiologists near Dr. Zeichner
Counts of anesthesiologists 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. William D. Zeichner Jr. billed Medicare for 85 services in 2024
CMS data shows 85 Medicare services from Dr. Zeichner across 4 procedure codes in 2024, for 203 Medicare patients. Medicare paid $13,960 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zeichner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1102024: 8523%
- Surgery
- 2023: 132024: 0100%
Dr. Zeichner compared with the Maryland median for anesthesiologists, 2024
- Dr. Zeichner
- Maryland median
- Medicare services
- 85vs 10116% below
- Medicare patients
- 203vs 17615% above
Medians across 918 anesthesiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Zeichner'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. Zeichner and other anesthesiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William D. Zeichner Jr. treated 203 Medicare patients in 2024, average age 73
CMS counts 203 Medicare patients who saw Dr. Zeichner in 2024. The largest group is 65 to 74, with 94 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zeichner's median patient age at 40, with 73% women.
Dr. Zeichner's Medicare patients by age, 2024
Dr. Zeichner's Medicare patients by sex, 2024
- Women11758%
- Men8642%
Chronic conditions among Dr. Zeichner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Anxiety33%
- Mood disorders33%
- Diabetes30%
- Chronic kidney disease29%
- Depression29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zeichner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women73%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. William D. Zeichner Jr. takes part in Medicare
Dr. Zeichner 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. William D. Zeichner Jr. received $72 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Zeichner from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $53.
General payments to Dr. Zeichner by program year, 2024 to 2025
Companies that paid Dr. Zeichner the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William D. Zeichner Jr. graduated from Louisiana State University School of Medicine in Shreveport
Dr. Zeichner graduated from Louisiana State University School of Medicine in Shreveport in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William D. Zeichner Jr.'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) |
| 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. William D. Zeichner Jr.
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. William D. Zeichner Jr.'s NPI number?
Dr. William D. Zeichner Jr.'s NPI number is 1043751472. It was assigned on March 18, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. William D. Zeichner Jr.?
Dr. William D. Zeichner Jr. is an anesthesiologist in Towson, Maryland. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. William D. Zeichner Jr. practice?
Dr. Zeichner practices at 6701 North Charles Street, Baltimore, MD 21204. Dr. Zeichner's primary practice is Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare. Dmand AI also links Dr. Zeichner to 2 medical groups.
What is Dr. William D. Zeichner Jr.'s office phone number?
The practice phone on file for Dr. Zeichner is (443) 849-2000.
What is Dr. William D. Zeichner Jr.'s medical license number?
Dr. Zeichner holds Maryland license D0091240.
Which hospitals is Dr. William D. Zeichner Jr. affiliated with?
Dr. Zeichner practices at Greater Baltimore Medical Center in Baltimore, Maryland.
What medical group is Dr. William D. Zeichner Jr. part of?
Dr. Zeichner is linked to Anesthesia Company, LLC. Dmand AI links Dr. Zeichner to 2 more medical groups.
Does Dr. William D. Zeichner Jr. accept Medicare?
Yes. CMS data shows Dr. Zeichner billed Medicare for 85 services in 2024, and Dr. Zeichner accepts Medicare assignment.
How many Medicare patients does Dr. William D. Zeichner Jr. see?
CMS counts 203 Medicare patients who saw Dr. Zeichner in 2024, with an average age of 73.
What services does Dr. William D. Zeichner Jr. bill to Medicare?
In 2024, Dr. Zeichner's most billed Medicare services were anesthesia (01402), anesthesia (00790) and anesthesia (00752).
Show 3 more questionsShow fewer questions
Where did Dr. William D. Zeichner Jr. go to medical school?
Dr. Zeichner graduated from Louisiana State University School of Medicine in Shreveport in 2017.
Has Dr. William D. Zeichner Jr. received payments from drug or device companies?
CMS Open Payments shows $72 in general payments to Dr. Zeichner from 2 companies from 2024 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. William D. Zeichner Jr. been practicing?
Dr. Zeichner graduated from medical school in 2017, 9 years ago.
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