Dr. Thomas Heer, MD
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 522
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
- Practice phone
- Call (626) 851-1011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Heer'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. Thomas Heer is an orthopedic surgeon in Baldwin Park, California
Dr. Heer practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente.
Dr. Heer's NPI, 1992817084, was assigned on August 31, 2006. Dr. Heer graduated from David Geffen School of Medicine at UCLA in 1988. Dr. Heer holds California license G66950.
- NPI
- 1992817084NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163497637
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 851-1011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Heer practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California
Dr. Heer's primary practice is Kaiser Permanente Baldwin Park Medical Center, at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706 in Los Angeles County. The practice phone is (626) 851-1011.
- Kaiser Permanente Baldwin Park Medical Center1011 Baldwin Park Blvd, Baldwin Park, CA 91706 · Los Angeles CountyPhone(626) 851-1011
Source: Dmand AI Affiliation Data
Dr. Thomas Heer is affiliated with 2 sites of care and 1 medical group
Dr. Heer's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Heer to 1 more home health agency, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas Heer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Heer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Baldwin Park Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Heer is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Heer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Heer is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Heer's licenses on file in 2 states: California and Ohio.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Ohio license
Clinical focus
Dmand AI lists arthritis among the conditions Dr. Heer treats.
Orthopedic surgeons near Dr. Heer
Counts of orthopedic surgeons 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. Thomas Heer treated 11 Medicare patients in 2024, average age 72
CMS counts 11 Medicare patients who saw Dr. Heer in 2024. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Heer's median patient age at 71, with 68% women.
Dr. Heer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Heer wrote 522 Medicare Part D claims in 2024
In 2024, Dr. Heer wrote 522 Medicare Part D claims for 214 patients. 100% of them were for generic drugs. CMS names the drug for 466 of them, across 9 drugs with 11 or more claims each, at $6,102 in total drug cost.
Dr. Heer's Part D claims by kind of drug, 2024
- Generic520 claims100%
- Brand-name and other2 claims0%
Dr. Heer'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. Heer's Part D claims, 2024
- Opioids36%187 of 522 claims
- Antibiotics14%75 of 522 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Thomas Heer takes part in Medicare
Dr. Heer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Knee replacement: 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. Thomas Heer graduated from David Geffen School of Medicine at UCLA
Dr. Heer graduated from David Geffen School of Medicine at UCLA in 1988.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Thomas Heer accepts plans from 2 insurance carriers
Dr. Heer 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. Heer accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas Heer'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 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) |
| 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. Thomas Heer
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. Thomas Heer's NPI number?
Dr. Thomas Heer's NPI number is 1992817084. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Heer?
Dr. Thomas Heer is an orthopedic surgeon in Baldwin Park, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Thomas Heer practice?
Dr. Heer practices at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706. Dr. Heer's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente. Dmand AI also links Dr. Heer to 1 home health agency.
What is Dr. Thomas Heer's office phone number?
The practice phone on file for Dr. Heer is (626) 851-1011.
What is Dr. Thomas Heer's medical license number?
Dr. Heer holds California license G66950, one of the licenses on file in 2 states.
Which states has Dr. Thomas Heer been licensed in?
Dmand AI has state licenses on file for Dr. Heer in California (1989 to 2027) and Ohio (1993 to 1994).
Which hospitals is Dr. Thomas Heer affiliated with?
Dr. Heer practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California.
What medical group is Dr. Thomas Heer part of?
Dr. Heer is linked to Southern California Permanente Medical Group.
Does Dr. Thomas Heer accept Medicare?
Yes. CMS lists Dr. Heer as accepting Medicare assignment.
How many Medicare patients does Dr. Thomas Heer see?
CMS counts 11 Medicare patients who saw Dr. Heer in 2024, with an average age of 72.
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Is Dr. Thomas Heer board certified?
Yes. Dr. Heer is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
Where did Dr. Thomas Heer go to medical school?
Dr. Heer graduated from David Geffen School of Medicine at UCLA in 1988.
What drugs does Dr. Thomas Heer prescribe most?
In 2024 Medicare Part D data, Dr. Heer's most prescribed drugs by claims were Ondansetron ODT, Oxycodone-Acetaminophen and Ibuprofen.
How long has Dr. Thomas Heer been practicing?
Dr. Heer graduated from medical school in 1988, 38 years ago.
What insurance does Dr. Thomas Heer accept?
Dr. Heer 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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