Dr. Margaret Sophia Spencer, MD
- Medicare services, 2024
- 29
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 6,479
- Hospital affiliations
- 1
- Industry payments
- $78
- Practice address
- 13652 Cantara St, Panorama City, CA 91402
- Practice phone
- Call (818) 375-2000
- 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. Margaret Sophia Spencer is an ophthalmologist in Panorama City, California
Dr. Spencer practices at Panorama City Medical Center in Panorama City, California, part of Kaiser Permanente.
Dr. Spencer's NPI, 1104919539, was assigned on September 30, 2006. Dr. Spencer graduated from Keck School of Medicine of USC in 1994. Dr. Spencer holds California license A54824.
- NPI
- 1104919539NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820177843
- NPI enumeration date
- September 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 375-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margaret Sophia Spencer practices at Panorama City Medical Center in Panorama City, California
Dr. Spencer's primary practice is Panorama City Medical Center, at 13652 Cantara St, Panorama City, CA 91402 in Los Angeles County. The practice phone is (818) 375-2000.
- Panorama City Medical Center13652 Cantara St, Panorama City, CA 91402 · Los Angeles CountyPhone(818) 375-2000
Source: Dmand AI Affiliation Data
Dr. Margaret Sophia Spencer is affiliated with 1 site of care and 1 medical group
Dr. Spencer's primary practice is Panorama City Medical Center in Panorama City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Margaret Sophia Spencer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spencer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Panorama City Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margaret Sophia Spencer is one of 2,621 ophthalmologists in California
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 2 states: California and Minnesota.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Minnesota license
Clinical focus
Dmand AI lists glaucoma and vision problems among the conditions Dr. Spencer treats.
Ophthalmologists near Dr. Spencer
Counts of ophthalmologists 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. Margaret Sophia Spencer billed Medicare for 29 services in 2024
CMS data shows 29 Medicare services from Dr. Spencer across 1 procedure code in 2024, all of them office visits, for 35 Medicare patients. Medicare paid $1,465 for them. Every service was in an office.
Dr. Spencer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 352024: 2917%
- Tests and treatments
- 2023: 212024: 0100%
Dr. Spencer compared with the California median for ophthalmologists, 2024
- Dr. Spencer
- California median
- Medicare services
- 29vs 1,07997% below
- Medicare patients
- 35vs 42192% below
- Part D claims
- 6,427vs 61810.4 times
Medians across 2,568 ophthalmologists in California 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 ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Margaret Sophia Spencer treated 35 Medicare patients in 2024, average age 67
CMS counts 35 Medicare patients who saw Dr. Spencer in 2024. The largest group is 65 to 74, with 17 patients. 66% of them have high blood pressure, and 51% have high cholesterol. 54% are also on Medicaid. Their average risk score is 1.66, 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. Spencer's median patient age at 75, with 63% 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
- Women2057%
- Men1543%
Chronic conditions among Dr. Spencer's Medicare patients, 2024
- High blood pressure66%
- High cholesterol51%
- Diabetes40%
- Arthritis31%
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 75
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Margaret Sophia Spencer wrote 6,479 Medicare Part D claims in 2024
In 2024, Dr. Spencer wrote 6,479 Medicare Part D claims for 1,516 patients. 91% of them were for generic drugs. CMS names the drug for 6,427 of them, across 17 drugs with 11 or more claims each, at $392,430 in total drug cost. In 2023, CMS named 6,275 claims across 18 drugs.
Dr. Spencer's Part D claims by kind of drug, 2024
- Generic5,922 claims91%
- Brand-name557 claims9%
Dr. Spencer's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,2752024: 6,4272%
Drugs named by CMS: 17 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Margaret Sophia 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)
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Dr. Margaret Sophia Spencer received $78 in industry payments from 2019 to 2024
CMS Open Payments shows 2 general payments to Dr. Spencer from 2 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. Aerie Pharmaceuticals, Inc. paid the most, $56.
General payments to Dr. Spencer by program year, 2019 to 2024
Companies that paid Dr. Spencer the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Margaret Sophia Spencer has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Spencer, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Spencer
- 2011
- CMS Stage 1 2012
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Margaret Sophia Spencer graduated from Keck School of Medicine of USC
Dr. Spencer graduated from Keck School of Medicine of USC in 1994. Dr. Spencer is a member of AAO and American Glaucoma Society.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Margaret Sophia Spencer accepts plans from 2 insurance carriers
Dr. Spencer is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Spencer accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Margaret Sophia 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| 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. Margaret Sophia 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. Margaret Sophia Spencer's NPI number?
Dr. Margaret Sophia Spencer's NPI number is 1104919539. It was assigned on September 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Margaret Sophia Spencer?
Dr. Margaret Sophia Spencer is an ophthalmologist in Panorama City, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Margaret Sophia Spencer practice?
Dr. Spencer practices at 13652 Cantara St, Panorama City, CA 91402. Dr. Spencer's primary practice is Panorama City Medical Center in Panorama City, California, part of Kaiser Permanente.
What is Dr. Margaret Sophia Spencer's office phone number?
The practice phone on file for Dr. Spencer is (818) 375-2000.
What is Dr. Margaret Sophia Spencer's medical license number?
Dr. Spencer holds California license A54824, one of the licenses on file in 2 states.
Which states has Dr. Margaret Sophia Spencer been licensed in?
Dmand AI has state licenses on file for Dr. Spencer in California (1995 to 2027) and Minnesota (2000 to 2005).
Which hospitals is Dr. Margaret Sophia Spencer affiliated with?
Dr. Spencer practices at Panorama City Medical Center in Panorama City, California.
What medical group is Dr. Margaret Sophia Spencer part of?
Dr. Spencer is linked to Southern California Permanente Medical Group.
Does Dr. Margaret Sophia Spencer accept Medicare?
Yes. CMS data shows Dr. Spencer billed Medicare for 29 services in 2024, and Dr. Spencer accepts Medicare assignment.
How many Medicare patients does Dr. Margaret Sophia Spencer see?
CMS counts 35 Medicare patients who saw Dr. Spencer in 2024, with an average age of 67.
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Is Dr. Margaret Sophia Spencer board certified?
Yes. Dr. Spencer is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Margaret Sophia Spencer bill to Medicare?
In 2024, Dr. Spencer's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Margaret Sophia Spencer go to medical school?
Dr. Spencer graduated from Keck School of Medicine of USC in 1994.
What drugs does Dr. Margaret Sophia Spencer prescribe most?
In 2024 Medicare Part D data, Dr. Spencer's most prescribed drugs by claims were Latanoprost, Brimonidine Tartrate and Dorzolamide-Timolol.
Has Dr. Margaret Sophia Spencer received payments from drug or device companies?
CMS Open Payments shows $78 in general payments to Dr. Spencer from 2 companies from 2019 to 2024. The largest total came from Aerie Pharmaceuticals, Inc.
How long has Dr. Margaret Sophia Spencer been practicing?
Dr. Spencer graduated from medical school in 1994, 32 years ago.
What insurance does Dr. Margaret Sophia Spencer accept?
Dr. Spencer is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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