Dr. Christopher B. Spencer, MD
- Medicare services, 2024
- 195
- Medicare patients, 2024
- 190
- Industry payments
- $2,970
- Affiliated sites
- 4
- Medical groups
- 2
- Practice address
- 425 Post Rd, Fairfield, CT 06824
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endoscopy Center of Fairfield, the - HOPD
Acute Care Hospital outpatient department · Fairfield, Connecticut
Find Dr. Spencer'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. Christopher B. Spencer is an anesthesiologist in Fairfield, Connecticut
Dr. Spencer practices at Endoscopy Center of Fairfield, the - HOPD in Fairfield, Connecticut.
Dr. Spencer's NPI, 1538143797, was assigned on December 1, 2005. Dr. Spencer graduated from State University of New York Downstate Medical Center in 1993. Dr. Spencer holds Connecticut license 039597.
- NPI
- 1538143797NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678536711
- NPI enumeration date
- December 1, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher B. Spencer practices at Endoscopy Center of Fairfield, the - HOPD in Fairfield, Connecticut
Dr. Spencer's primary practice is Endoscopy Center of Fairfield, the - HOPD, at 425 Post Rd, Fairfield, CT 06824.
- Endoscopy Center of Fairfield, the - HOPD425 Post Rd, Fairfield, CT 06824
Source: Dmand AI Affiliation Data
Dr. Christopher B. Spencer is affiliated with 4 sites of care and 2 medical groups
Dr. Spencer's primary practice is Endoscopy Center of Fairfield, the - HOPD in Fairfield, Connecticut. The medical group on file is Greater Connecticut Anesthesia Associates. Dmand AI also links Dr. Spencer to 2 more group practices and clinics, 1 ambulatory surgery center and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christopher B. Spencer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spencer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endoscopy Center of Fairfield, the - HOPD | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christopher B. Spencer is one of 654 anesthesiologists in Connecticut
Anesthesiology is Dr. Spencer's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Spencer is licensed in Connecticut.
Specialties and state licenses
- Anesthesiology, ConnecticutPrimary
Anesthesiologists near Dr. Spencer
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. Christopher B. Spencer billed Medicare for 195 services in 2024
CMS data shows 195 Medicare services from Dr. Spencer across 4 procedure codes in 2024, for 190 Medicare patients. Medicare paid $21,717 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Spencer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 3012024: 19535%
Dr. Spencer compared with the Connecticut median for anesthesiologists, 2024
- Dr. Spencer
- Connecticut median
- Medicare services
- 195vs 892.2 times
- Medicare patients
- 190vs 16019% above
Medians across 636 anesthesiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Spencer'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. Spencer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Spencer and other anesthesiologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher B. Spencer treated 190 Medicare patients in 2024, average age 73
CMS counts 190 Medicare patients who saw Dr. Spencer in 2024. The largest group is 65 to 74, with 106 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Spencer's median patient age at 64, with 68% women.
Dr. Spencer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Spencer's Medicare patients by sex, 2024
- Women11259%
- Men7841%
Chronic conditions among Dr. Spencer's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis53%
- Anxiety22%
- Cancer21%
- Diabetes21%
- Ischemic heart disease20%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Spencer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women68%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Christopher B. Spencer takes part in Medicare
Dr. Spencer 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Christopher B. Spencer received $2,970 in industry payments from 2017 to 2025
CMS Open Payments shows 159 general payments to Dr. Spencer from 17 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $845.
General payments to Dr. Spencer by program year, 2017 to 2025
Companies that paid Dr. Spencer the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher B. Spencer graduated from State University of New York Downstate Medical Center
Dr. Spencer graduated from State University of New York Downstate Medical Center in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher B. Spencer'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 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. Christopher B. Spencer
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. Christopher B. Spencer's NPI number?
Dr. Christopher B. Spencer's NPI number is 1538143797. It was assigned on December 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher B. Spencer?
Dr. Christopher B. Spencer is an anesthesiologist in Fairfield, Connecticut. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Christopher B. Spencer practice?
Dr. Spencer practices at 425 Post Rd, Fairfield, CT 06824. Dr. Spencer's primary practice is Endoscopy Center of Fairfield, the - HOPD in Fairfield, Connecticut. Dmand AI also links Dr. Spencer to 2 group practices and clinics, 1 ambulatory surgery center and 1 medical group.
What is Dr. Christopher B. Spencer's medical license number?
Dr. Spencer holds Connecticut license 039597.
What medical group is Dr. Christopher B. Spencer part of?
Dr. Spencer is linked to Greater Connecticut Anesthesia Associates. Dmand AI links Dr. Spencer to 1 more medical group.
Does Dr. Christopher B. Spencer accept Medicare?
Yes. CMS data shows Dr. Spencer billed Medicare for 195 services in 2024, and Dr. Spencer accepts Medicare assignment.
How many Medicare patients does Dr. Christopher B. Spencer see?
CMS counts 190 Medicare patients who saw Dr. Spencer in 2024, with an average age of 73.
What services does Dr. Christopher B. Spencer bill to Medicare?
In 2024, Dr. Spencer's most billed Medicare services were anesthesia (00811), anesthesia (00731) and anesthesia (00812).
Where did Dr. Christopher B. Spencer go to medical school?
Dr. Spencer graduated from State University of New York Downstate Medical Center in 1993.
Has Dr. Christopher B. Spencer received payments from drug or device companies?
CMS Open Payments shows $2,970 in general payments to Dr. Spencer from 17 companies from 2017 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Christopher B. Spencer been practicing?
Dr. Spencer graduated from medical school in 1993, 33 years ago.
Selling to anesthesiology practices?
See anesthesiologists in Connecticut by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card