Dr. John Spencer, MD
- Medicare services, 2024
- 58
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 2,213
- Hospital affiliations
- 1
- Industry payments
- $64
- Practice address
- 1168 N Euclid St, Anaheim, CA 92801
- Practice phone
- Call (833) 260-3358
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ava Health Partners
Primary care practice · Anaheim, California
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. John Spencer is a family medicine physician in Anaheim, California
Dr. Spencer practices at Ava Health Partners in Anaheim, California.
Dr. Spencer's NPI, 1548369937, was assigned on September 21, 2006. Dr. Spencer holds Arizona license 46503.
- NPI
- 1548369937NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668555830
- NPI enumeration date
- September 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (833) 260-3358
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Spencer practices at Ava Health Partners in Anaheim, California
Dr. Spencer's primary practice is Ava Health Partners, at 1168 N Euclid St, Anaheim, CA 92801. The practice phone is (833) 260-3358.
- Ava Health Partners1168 N Euclid St, Anaheim, CA 92801Phone(833) 260-3358
Source: Dmand AI Affiliation Data
Dr. John Spencer is affiliated with 5 sites of care and 3 medical groups
Dr. Spencer's primary practice is Ava Health Partners in Anaheim, California. Dr. Spencer is also affiliated with Tucson Medical Center. The medical group on file is Ava Health Partners. Dmand AI also links Dr. Spencer to 2 more home health agencies, 2 medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Spencer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spencer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ava Health Partners | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Spencer is one of 15,680 family medicine physicians in California
Family medicine is Dr. Spencer's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Spencer's licenses on file in 2 states: Arizona and Tennessee.
Specialties and state licenses
- Family medicine, ArizonaPrimary
- Tennessee license
Family medicine physicians near Dr. Spencer
Counts of family medicine physicians 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. John Spencer billed Medicare for 58 services in 2024
CMS data shows 58 Medicare services from Dr. Spencer across 2 procedure codes in 2024, for 50 Medicare patients. Medicare paid $539 for them. Every service was in an office.
Dr. Spencer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 02024: 43
- Surgery
- 2023: 302024: 1550%
- Other services
- 2023: 222024: 0100%
- Office and hospital visits
- 2023: 3532024: 0100%
Dr. Spencer compared with the California median for family medicine physicians, 2024
- Dr. Spencer
- California median
- Medicare services
- 58vs 24676% below
- Medicare patients
- 50vs 11858% below
- Part D claims
- 1,646vs 83398% above
Medians across 15,349 family medicine physicians 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Spencer treated 50 Medicare patients in 2024, average age 77
CMS counts 50 Medicare patients who saw Dr. Spencer in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Spencer's median patient age at 74, with 48% 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
- Women2346%
- Men2754%
Chronic conditions among Dr. Spencer's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis54%
- Ischemic heart disease36%
- Diabetes32%
- Anxiety22%
- Chronic kidney disease22%
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 74
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Spencer wrote 2,213 Medicare Part D claims in 2024
In 2024, Dr. Spencer wrote 2,213 Medicare Part D claims for 442 patients. 88% of them were for generic drugs. CMS names the drug for 1,646 of them, across 54 drugs with 11 or more claims each, at $74,604 in total drug cost. In 2023, CMS named 2,902 claims across 79 drugs.
Dr. Spencer's Part D claims by kind of drug, 2024
- Generic1,955 claims88%
- Brand-name and other258 claims12%
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.
Drug classes CMS tracks in Dr. Spencer's Part D claims, 2024
- Opioids3%62 of 2,213 claims
- Antibiotics6%128 of 2,213 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,9022024: 1,64643%
Drugs named by CMS: 54 in 2024, 79 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. John Spencer takes part in Medicare
Dr. Spencer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Spencer received $64 in industry payments from 2016 to 2025
CMS Open Payments shows 4 general payments to Dr. Spencer from 2 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $50.
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
Sources for Dr. John 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) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. John 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. John Spencer's NPI number?
Dr. John Spencer's NPI number is 1548369937. It was assigned on September 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Spencer?
Dr. John Spencer is a family medicine physician in Anaheim, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Spencer practice?
Dr. Spencer practices at 1168 N Euclid St, Anaheim, CA 92801. Dr. Spencer's primary practice is Ava Health Partners in Anaheim, California. Dmand AI also links Dr. Spencer to 2 home health agencies, 2 medical groups and 1 group practice or clinic.
What is Dr. John Spencer's office phone number?
The practice phone on file for Dr. Spencer is (833) 260-3358.
What is Dr. John Spencer's medical license number?
Dr. Spencer holds Arizona license 46503, one of the licenses on file in 2 states.
Which states has Dr. John Spencer been licensed in?
Dmand AI has state licenses on file for Dr. Spencer in Arizona and Tennessee.
Which hospitals is Dr. John Spencer affiliated with?
Dr. Spencer is affiliated with Tucson Medical Center.
What medical group is Dr. John Spencer part of?
Dr. Spencer is linked to Ava Health Partners. Dmand AI links Dr. Spencer to 2 more medical groups.
Does Dr. John Spencer accept Medicare?
Yes. CMS data shows Dr. Spencer billed Medicare for 58 services in 2024, and Dr. Spencer accepts Medicare assignment.
How many Medicare patients does Dr. John Spencer see?
CMS counts 50 Medicare patients who saw Dr. Spencer in 2024, with an average age of 77.
Show 4 more questionsShow fewer questions
What services does Dr. John Spencer bill to Medicare?
In 2024, Dr. Spencer's most billed Medicare services were lab and pathology test (83036) and surgery: heart and blood vessels (36415).
What drugs does Dr. John Spencer prescribe most?
In 2024 Medicare Part D data, Dr. Spencer's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Amlodipine Besylate.
Has Dr. John Spencer received payments from drug or device companies?
CMS Open Payments shows $64 in general payments to Dr. Spencer from 2 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. John Spencer been practicing?
Dr. Spencer graduated from medical school in 1975, 51 years ago.
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