Retinopathy of PrematurityInfant, Premature, Diseases
Dr. William B. Spencer, MD
NPI1164406088
- Medicare services, 2022
- 10,426
- Part D claims, 2022
- 166
- Clinical trials
- 1
- Hospital affiliations
- 1
- Industry payments
- $1,051
- Practice address
- 5200 Harry Hines Blvd, Dallas, TX 75235
- Practice phone
- Call (214) 590-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Spencer's professional email, personal email and mobile number
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Dr. William B. Spencer is an ophthalmologist in Dallas, Texas
Dr. Spencer practices at Parkland Memorial Hospital in Dallas, Texas, part of Parkland Health.
Dr. Spencer's NPI, 1164406088, was assigned on December 5, 2005. Dr. Spencer graduated from Tulane School of Medicine in 1974. Dr. Spencer holds Texas license F3623.
NPI and contact details
- NPI
- 1164406088NPI Registry (opens in a new tab)
- NPI enumeration date
- December 5, 2005
- NPI status
- Active
- Practice phone
- (214) 590-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William B. Spencer practices at Parkland Memorial Hospital in Dallas, Texas
Dr. Spencer's primary practice is Parkland Memorial Hospital, at 5200 Harry Hines Blvd, Dallas, TX 75235 in Dallas County. The practice phone is (214) 590-8000.
- Parkland Memorial Hospital5200 Harry Hines Blvd, Dallas, TX 75235 · Dallas CountyPhone(214) 590-8000
Source: Dmand AI Affiliation Data
Dr. William B. Spencer is affiliated with 4 sites of care and 1 medical group
Dr. Spencer's primary practice is Parkland Memorial Hospital in Dallas, Texas, part of Parkland Health. The medical group on file is University of Texas Southwestern Medical Center. Dmand AI also links Dr. Spencer to 1 more clinical lab, 1 group practice or clinic and 1 hospital outpatient department, each named with a free account.
University of Texas Southwestern Medical Center1 clinical labName with a free account1 group practice or clinicName with a free account1 hospital outpatient departmentName with a free account
See all 5 affiliations for Dr. SpencerSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William 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 |
|---|---|
| Parkland Memorial Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William B. Spencer is one of 1,311 ophthalmologists in Texas
Ophthalmology is Dr. Spencer's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Spencer is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Spencer's licenses on file in 3 states: Texas, Montana and Louisiana.
Specialties and state licenses
- Ophthalmology, TexasPrimary
- Montana license
- Louisiana license
Ophthalmologists near Dr. Spencer
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
1,311ophthalmologists in Texas101ophthalmologists in Dallas9ophthalmologists at Parkland Memorial Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William B. Spencer billed Medicare for 10,426 services in 2022
CMS data shows 10,426 Medicare services from Dr. Spencer across 13 procedure codes in 2022. Medicare paid $1,711,441 for them. Every service was in an office.
Medicare services, 202210,426
Paid by Medicare$1.7M
Procedure codes13
Dr. Spencer's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Drugs given in the office
- 2021: 2,8992022: 6,255116%
- Tests and treatments
- 2021: 2,4452022: 2,5886%
- Surgery
- 2021: 9392022: 9734%
- Office and hospital visits
- 2021: 6312022: 6103%
- Imaging
- 2021: 222022: 0100%
Dr. Spencer compared with the Texas median for ophthalmologists, 2022
- Dr. Spencer
- Texas median
- Medicare services
- 10,426vs 1,3537.7 times
- Part D claims
- 166vs 61373% below
Medians across 1,290 ophthalmologists in Texas with Dmand AI profiles that report each measure.
Dr. Spencer's most billed Medicare procedure codes, 2022
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 ophthalmologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William B. Spencer's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Spencer's median patient age at 67, with 46% women.
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 67
Patient panel by sex, all payers
- Women46%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. William B. Spencer wrote 166 Medicare Part D claims in 2022
In 2022, Dr. Spencer wrote 166 Medicare Part D claims. They cover 8 drugs, with $12,811 in total drug cost. In 2021, CMS named 212 claims across 8 drugs.
Part D claims, 2022166
Drugs named by CMS8
Total drug cost$12,811
Dr. Spencer's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2122022: 16622%
Drugs named by CMS: 8 in 2022, 8 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William B. Spencer has worked on 1 clinical trial
Dmand AI links Dr. Spencer to 1 clinical trial. Conditions studied include Retinopathy of Prematurity and Infant, Premature, Diseases.
Conditions in Dr. Spencer's trials
- Retinopathy of Prematurity
- Infant, Premature, Diseases
Investigators on the most trials with Dr. Spencer
Recent clinical trials with Dr. Spencer
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. William B. Spencer received $1,051 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Spencer from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Alimera Sciences, Inc. paid the most, $387.
General payments to Dr. Spencer by program year, 2016 to 2025
Companies that paid Dr. Spencer 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. William B. Spencer has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Spencer, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Spencer
- 2013
- CMS Stage 1 EHR
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. William B. Spencer graduated from Tulane School of Medicine
Dr. Spencer graduated from Tulane School of Medicine in 1974. Dr. Spencer is a member of AAO, American Ophthalmological Society, American Society of Retina Specialists, TMA and The Retina Society.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. William B. Spencer accepts plans from 2 insurance carriers
Dr. Spencer is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
Plan types Dr. Spencer accepts, by number of carriers
- HMO2
- POS2
- Medicare1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. William 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 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 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. William B. Spencer's NPI number?
Dr. William B. Spencer's NPI number is 1164406088. It was assigned on December 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William B. Spencer?
Dr. William B. Spencer is an ophthalmologist in Dallas, Texas. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. William B. Spencer practice?
Dr. Spencer practices at 5200 Harry Hines Blvd, Dallas, TX 75235. Dr. Spencer's primary practice is Parkland Memorial Hospital in Dallas, Texas, part of Parkland Health. Dmand AI also links Dr. Spencer to 1 clinical lab, 1 group practice or clinic and 1 hospital outpatient department.
What is Dr. William B. Spencer's office phone number?
The practice phone on file for Dr. Spencer is (214) 590-8000.
What is Dr. William B. Spencer's medical license number?
Dr. Spencer holds Texas license F3623, one of the licenses on file in 3 states.
Which states has Dr. William B. Spencer been licensed in?
Dmand AI has state licenses on file for Dr. Spencer in Texas (1979 to 2027), Montana (2007 to 2027) and Louisiana (1974 to 2004).
Which hospitals is Dr. William B. Spencer affiliated with?
Dr. Spencer practices at Parkland Memorial Hospital in Dallas, Texas.
What medical group is Dr. William B. Spencer part of?
Dr. Spencer is linked to University of Texas Southwestern Medical Center.
Does Dr. William B. Spencer accept Medicare?
Yes. CMS data shows Dr. Spencer billed Medicare for 10,426 services in 2022.
Is Dr. William B. Spencer board certified?
Yes. Dr. Spencer is board certified in ophthalmology by the American Board of Ophthalmology.
Show 7 more questionsShow fewer questions
What services does Dr. William B. Spencer bill to Medicare?
In 2022, Dr. Spencer's most billed Medicare services were injected or infused drug (J2777), injected or infused drug (J0178) and eye exam or test (92134).
Where did Dr. William B. Spencer go to medical school?
Dr. Spencer graduated from Tulane School of Medicine in 1974.
What drugs does Dr. William B. Spencer prescribe most?
In 2022 Medicare Part D data, Dr. Spencer's most prescribed drugs by claims were Dorzolamide-Timolol, Ketorolac Tromethamine and Ofloxacin.
Has Dr. William B. Spencer received payments from drug or device companies?
CMS Open Payments shows $1,051 in general payments to Dr. Spencer from 9 companies from 2016 to 2025. The largest total came from Alimera Sciences, Inc.
How long has Dr. William B. Spencer been practicing?
Dr. Spencer graduated from medical school in 1974, 52 years ago.
Does Dr. William B. Spencer do research?
Dr. Spencer has worked on 1 clinical trial.
What insurance does Dr. William B. Spencer accept?
Dr. Spencer is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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