Dr. Ernest Nathan C Flaim, DO
- Medicare services, 2024
- 149
- Medicare patients, 2024
- 271
- Hospital affiliations
- 1
- Industry payments
- $203
- Medical group
- 1
- Practice address
- 500 Upper Chesapeake Drive, Bel Air, MD 21014
- Practice phone
- Call (443) 643-3303
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Ernest Nathan C Flaim is an anesthesiologist in Bel Air, Maryland
Dr. Flaim practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System.
Dr. Flaim's NPI, 1871820340, was assigned on November 4, 2009. Dr. Flaim graduated from West Virginia School of Osteopathic Medicine in 2008. Dr. Flaim holds Maryland license H0076928.
- NPI
- 1871820340NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466604301
- NPI enumeration date
- November 4, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (443) 643-3303
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ernest Nathan C Flaim practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland
Dr. Flaim's primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air, at 500 Upper Chesapeake Drive, Bel Air, MD 21014 in Harford County. The practice phone is (443) 643-3303.
- University of Maryland Upper Chesapeake Medical Center Bel Air500 Upper Chesapeake Drive, Bel Air, MD 21014 · Harford CountyPhone(443) 643-3303
Source: Dmand AI Affiliation Data
Dr. Ernest Nathan C Flaim is affiliated with 1 site of care and 1 medical group
Dr. Flaim's primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System. The medical group on file is Maryland Anesthesia & Pain Management Services.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ernest Nathan C Flaim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Flaim practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Upper Chesapeake Medical Center Bel Air | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ernest Nathan C Flaim is one of 965 anesthesiologists in Maryland
Anesthesiology is Dr. Flaim's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Flaim's licenses on file in 2 states: Maryland and Ohio.
Specialties and state licenses
- Anesthesiology, MarylandPrimary
- Ohio license
Anesthesiologists near Dr. Flaim
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. Ernest Nathan C Flaim billed Medicare for 149 services in 2024
CMS data shows 149 Medicare services from Dr. Flaim across 8 procedure codes in 2024, for 271 Medicare patients. Medicare paid $16,788 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Flaim's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 922024: 13142%
- Surgery
- 2023: 132024: 1838%
Dr. Flaim compared with the Maryland median for anesthesiologists, 2024
- Dr. Flaim
- Maryland median
- Medicare services
- 149vs 10148% above
- Medicare patients
- 271vs 17654% above
Medians across 918 anesthesiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Flaim'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.
Need commercial claims for Dr. Flaim?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Flaim and other anesthesiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ernest Nathan C Flaim treated 271 Medicare patients in 2024, average age 74
CMS counts 271 Medicare patients who saw Dr. Flaim in 2024. The largest group is 65 to 74, with 113 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.94, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Flaim's median patient age at 55, with 61% women.
Dr. Flaim's Medicare patients by age, 2024
Dr. Flaim's Medicare patients by sex, 2024
- Women14052%
- Men13148%
Chronic conditions among Dr. Flaim's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes40%
- Ischemic heart disease40%
- Mood disorders38%
- Anxiety35%
- Chronic kidney disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Flaim's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Ernest Nathan C Flaim takes part in Medicare
Dr. Flaim 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. Ernest Nathan C Flaim received $203 in industry payments from 2016 to 2024
CMS Open Payments shows 12 general payments to Dr. Flaim from 6 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $96.
General payments to Dr. Flaim by program year, 2016 to 2024
Companies that paid Dr. Flaim the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ernest Nathan C Flaim graduated from West Virginia School of Osteopathic Medicine
Dr. Flaim graduated from West Virginia School of Osteopathic Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ernest Nathan C Flaim'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. Ernest Nathan C Flaim
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. Ernest Nathan C Flaim's NPI number?
Dr. Ernest Nathan C Flaim's NPI number is 1871820340. It was assigned on November 4, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Ernest Nathan C Flaim?
Dr. Ernest Nathan C Flaim is an anesthesiologist in Bel Air, Maryland. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Ernest Nathan C Flaim practice?
Dr. Flaim practices at 500 Upper Chesapeake Drive, Bel Air, MD 21014. Dr. Flaim's primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System.
What is Dr. Ernest Nathan C Flaim's office phone number?
The practice phone on file for Dr. Flaim is (443) 643-3303.
What is Dr. Ernest Nathan C Flaim's medical license number?
Dr. Flaim holds Maryland license H0076928, one of the licenses on file in 2 states.
Which states has Dr. Ernest Nathan C Flaim been licensed in?
Dmand AI has state licenses on file for Dr. Flaim in Maryland and Ohio.
Which hospitals is Dr. Ernest Nathan C Flaim affiliated with?
Dr. Flaim practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland.
What medical group is Dr. Ernest Nathan C Flaim part of?
Dr. Flaim is linked to Maryland Anesthesia & Pain Management Services.
Does Dr. Ernest Nathan C Flaim accept Medicare?
Yes. CMS data shows Dr. Flaim billed Medicare for 149 services in 2024, and Dr. Flaim accepts Medicare assignment.
How many Medicare patients does Dr. Ernest Nathan C Flaim see?
CMS counts 271 Medicare patients who saw Dr. Flaim in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Ernest Nathan C Flaim bill to Medicare?
In 2024, Dr. Flaim's most billed Medicare services were anesthesia (00731), anesthesia (01402) and anesthesia (00790).
Where did Dr. Ernest Nathan C Flaim go to medical school?
Dr. Flaim graduated from West Virginia School of Osteopathic Medicine in 2008.
Has Dr. Ernest Nathan C Flaim received payments from drug or device companies?
CMS Open Payments shows $203 in general payments to Dr. Flaim from 6 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Ernest Nathan C Flaim been practicing?
Dr. Flaim graduated from medical school in 2008, 18 years ago.
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