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Dr. Robert Michael Liddell, MD
NPI1487676946
- Medicare services, 2019
- 31
- Publications
- 1
- Industry payments
- $249
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 4924 Campbell Blvd, Nottingham, MD 21236
- Practice phone
- Call (425) 250-1145
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Liddell'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. Robert Michael Liddell is a diagnostic radiologist in Nottingham, Maryland
Dr. Liddell practices in Nottingham, Maryland.
Dr. Liddell's NPI, 1487676946, was assigned on July 24, 2006. Dr. Liddell holds Washington license MD00023245.
NPI and contact details
- NPI
- 1487676946NPI Registry (opens in a new tab)
- NPI enumeration date
- July 24, 2006
- NPI status
- Active
- Practice phone
- (425) 250-1145
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Robert Michael Liddell's practice address is in Nottingham, Maryland
Dr. Liddell's practice address in the NPI Registry is 4924 Campbell Blvd, Nottingham, MD 21236, in Baltimore County. The practice phone is (425) 250-1145.
- NPI Registry address4924 Campbell Blvd, Nottingham, MD 21236 · Baltimore CountyPhone(425) 250-1145
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Robert Michael Liddell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liddell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Liddell's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Robert Michael Liddell is one of 626 diagnostic radiologists in Maryland
Diagnostic radiology is Dr. Liddell's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Liddell is licensed in Washington.
Specialties and state licenses
- Diagnostic radiology, WashingtonPrimary
Diagnostic radiologists near Dr. Liddell
Counts of diagnostic radiologists 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. Robert Michael Liddell billed Medicare for 31 services in 2019
CMS data shows 31 Medicare services from Dr. Liddell across 2 procedure codes in 2019. Medicare paid $2,772 for them. Every service was in an office.
Medicare services, 201931
Paid by Medicare$2,772
Procedure codes2
Dr. Liddell's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Imaging
- 2018: 172019: 3182%
Dr. Liddell compared with the Maryland median for diagnostic radiologists, 2019
- Dr. Liddell
- Maryland median
- Medicare services
- 31vs 5,24199% below
Medians across 602 diagnostic radiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Liddell's most billed Medicare procedure codes, 2019
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
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Dr. Robert Michael Liddell has 1 publication on record
Dmand AI links 1 paper to Dr. Liddell in 2018. Dr. Liddell's most frequent co-authors are Andrew G. Ayars, MD, Fred M. Baik, MD and Kelley Robert Branch.
Papers1
Dr. Liddell's most frequent co-authors
Recent publications by Dr. Liddell
See who Dr. Liddell researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Liddell works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Michael Liddell received $249 in industry payments from 2016 to 2017
CMS Open Payments shows 2 general payments to Dr. Liddell from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Cardinal Health, Inc. paid the most, $125.
General payments to Dr. Liddell by program year, 2016 to 2017
Companies that paid Dr. Liddell the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert Michael Liddell'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 |
| 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 |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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. Robert Michael Liddell
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. Robert Michael Liddell's NPI number?
Dr. Robert Michael Liddell's NPI number is 1487676946. It was assigned on July 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Michael Liddell?
Dr. Robert Michael Liddell is a diagnostic radiologist in Nottingham, Maryland. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Robert Michael Liddell practice?
Dr. Liddell practices at 4924 Campbell Blvd, Nottingham, MD 21236.
What is Dr. Robert Michael Liddell's office phone number?
The practice phone on file for Dr. Liddell is (425) 250-1145.
What is Dr. Robert Michael Liddell's medical license number?
Dr. Liddell holds Washington license MD00023245.
Does Dr. Robert Michael Liddell accept Medicare?
Yes. CMS data shows Dr. Liddell billed Medicare for 31 services in 2019.
What services does Dr. Robert Michael Liddell bill to Medicare?
In 2019, Dr. Liddell's most billed Medicare services were diagnostic imaging (73721) and diagnostic imaging (73700).
Has Dr. Robert Michael Liddell received payments from drug or device companies?
CMS Open Payments shows $249 in general payments to Dr. Liddell from 2 companies from 2016 to 2017. The largest total came from Cardinal Health, Inc.
How long has Dr. Robert Michael Liddell been practicing?
Dr. Liddell's NPI was assigned in 2006.
Does Dr. Robert Michael Liddell do research?
Dmand AI links 1 publication to Dr. Liddell.
Who does Dr. Robert Michael Liddell publish with?
Dr. Liddell's most frequent co-authors are Andrew G. Ayars, MD (1 shared paper), Fred M. Baik, MD (1 shared paper) and Kelley Robert Branch (1 shared paper).
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