Dr. Heidi Ellen Houlihan, MD
- Medicare services, 2024
- 6,574
- Medicare patients, 2024
- 1,644
- Part D claims, 2024
- 1,150
- MIPS score, 2024
- 89
- Hospital affiliations
- 1
- Practice address
- 3401 Esplanade, Chico, CA 95973-0207
- Practice phone
- Call (530) 895-1727
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chico Eye Center
Eye care practice · Chico, California
Find Dr. Houlihan's professional email, personal email and mobile number
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Dr. Heidi Ellen Houlihan is an ophthalmologist in Chico, California
Dr. Houlihan practices at Chico Eye Center in Chico, California.
Dr. Houlihan's NPI, 1811937683, was assigned on June 8, 2006. Dr. Houlihan graduated from Lewis Katz School of Medicine in 2000. Dr. Houlihan's California license number on file is A87124.
- NPI
- 1811937683NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547230203
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 895-1727
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Heidi Ellen Houlihan practices at Chico Eye Center in Chico, California
Dr. Houlihan's primary practice is Chico Eye Center, at 3401 Esplanade, Chico, CA 95973-0207. The practice phone is (530) 895-1727.
- Chico Eye Center3401 Esplanade, Chico, CA 95973-0207Phone(530) 895-1727
Source: Dmand AI Affiliation Data
Dr. Heidi Ellen Houlihan is affiliated with 3 sites of care and 2 medical groups
Dr. Houlihan's primary practice is Chico Eye Center in Chico, California. Dr. Houlihan is also affiliated with Enloe Health. The medical group on file is Chico Hospitalist Group. Dmand AI also links Dr. Houlihan to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Heidi Ellen Houlihan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Houlihan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chico Eye Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Heidi Ellen Houlihan is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Houlihan's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Houlihan is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Houlihan's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eyelid inflammation and glaucoma among the conditions Dr. Houlihan treats.
Ophthalmologists near Dr. Houlihan
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. Heidi Ellen Houlihan billed Medicare for 6,574 services in 2024
CMS data shows 6,574 Medicare services from Dr. Houlihan across 26 procedure codes in 2024, for 1,644 Medicare patients. Medicare paid $485,828 for them.
Dr. Houlihan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,4882024: 2,80613%
- Office and hospital visits
- 2023: 2,2812024: 2,4467%
- Lab and pathology
- 2023: 4042024: 77893%
- Surgery
- 2023: 5032024: 4932%
- Imaging
- 2023: 562024: 519%
Where Dr. Houlihan's Medicare services took place, 2024
- In an office6,28096%
- In a facility2944%
Dr. Houlihan compared with the California median for ophthalmologists, 2024
- Dr. Houlihan
- California median
- Medicare services
- 6,574vs 1,0796.1 times
- Medicare patients
- 1,644vs 4213.9 times
- Part D claims
- 1,089vs 61876% above
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Houlihan'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Houlihan and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Heidi Ellen Houlihan treated 1,644 Medicare patients in 2024, average age 75
CMS counts 1,644 Medicare patients who saw Dr. Houlihan in 2024. The largest group is 65 to 74, with 805 patients. 75% of them have high cholesterol, and 66% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Houlihan's median patient age at 73, with 65% women.
Dr. Houlihan's Medicare patients by age, 2024
Dr. Houlihan's Medicare patients by sex, 2024
- Women1,11168%
- Men53332%
Chronic conditions among Dr. Houlihan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis35%
- Diabetes23%
- Mood disorders17%
- Osteoporosis17%
- Anxiety16%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Houlihan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Heidi Ellen Houlihan wrote 1,150 Medicare Part D claims in 2024
In 2024, Dr. Houlihan wrote 1,150 Medicare Part D claims for 335 patients. 52% of them were for generic drugs. CMS names the drug for 1,089 of them, across 23 drugs with 11 or more claims each, at $178,337 in total drug cost. In 2023, CMS named 1,124 claims across 21 drugs.
Dr. Houlihan's Part D claims by kind of drug, 2024
- Generic596 claims52%
- Brand-name554 claims48%
Dr. Houlihan'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. Houlihan's Part D claims, 2024
- Antibiotics4%49 of 1,150 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: 1,1242024: 1,0893%
Drugs named by CMS: 23 in 2024, 21 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
Dr. Heidi Ellen Houlihan scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Houlihan for performance year 2024, reported as part of a group. Dr. Houlihan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 356 procedures of cataract surgery by Dr. Houlihan, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Houlihan's MIPS scores, performance year 2024
- 89of 100Final score
- 89.9of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Houlihan ranks in Medicare procedure volume
- Cataract surgery
- 92nd percentile356 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Heidi Ellen Houlihan received $6,119 in industry payments from 2016 to 2025
CMS Open Payments shows 128 general payments to Dr. Houlihan from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 54% of the total. RxSight Inc paid the most, $3,189.
General payments to Dr. Houlihan by program year, 2016 to 2025
General payments to Dr. Houlihan by kind, 2016 to 2025
- Food and beverage$3,31654%
- Consulting fees$2,77845%
- Honoraria$260%
Companies that paid Dr. Houlihan 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. Heidi Ellen Houlihan graduated from Lewis Katz School of Medicine
Dr. Houlihan graduated from Lewis Katz School of Medicine in 2000.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Heidi Ellen Houlihan accepts plans from 16 insurance carriers
Dr. Houlihan is in network with 16 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Humana
- Aetna
- Aspirus Health Plan
- +8 more carriersWith a free account
Plan types Dr. Houlihan accepts, by number of carriers
- HMO10
- PPO10
- Medicare7
- EPO3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Heidi Ellen Houlihan'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Heidi Ellen Houlihan
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. Heidi Ellen Houlihan's NPI number?
Dr. Heidi Ellen Houlihan's NPI number is 1811937683. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Heidi Ellen Houlihan?
Dr. Heidi Ellen Houlihan is an ophthalmologist in Chico, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Heidi Ellen Houlihan practice?
Dr. Houlihan practices at 3401 Esplanade, Chico, CA 95973-0207. Dr. Houlihan's primary practice is Chico Eye Center in Chico, California. Dmand AI also links Dr. Houlihan to 1 group practice or clinic and 1 medical group.
What is Dr. Heidi Ellen Houlihan's office phone number?
The practice phone on file for Dr. Houlihan is (530) 895-1727.
What is Dr. Heidi Ellen Houlihan's medical license number?
Dr. Houlihan's California license number on file is A87124, one of the licenses on file in 2 states.
Which states has Dr. Heidi Ellen Houlihan been licensed in?
Dmand AI has state licenses on file for Dr. Houlihan in California (2004 to 2025) and Michigan (2001 to 2004).
Which hospitals is Dr. Heidi Ellen Houlihan affiliated with?
Dr. Houlihan is affiliated with Enloe Health.
What medical group is Dr. Heidi Ellen Houlihan part of?
Dr. Houlihan is linked to Chico Hospitalist Group. Dmand AI links Dr. Houlihan to 1 more medical group.
Does Dr. Heidi Ellen Houlihan accept Medicare?
Yes. CMS data shows Dr. Houlihan billed Medicare for 6,574 services in 2024, and Dr. Houlihan accepts Medicare assignment.
What is Dr. Heidi Ellen Houlihan's MIPS score?
Dr. Houlihan's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Heidi Ellen Houlihan see?
CMS counts 1,644 Medicare patients who saw Dr. Houlihan in 2024, with an average age of 75.
Is Dr. Heidi Ellen Houlihan board certified?
Yes. Dr. Houlihan is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Heidi Ellen Houlihan bill to Medicare?
In 2024, Dr. Houlihan's most billed Medicare services were office visit, established patient (99214), lab and pathology test (83861) and eye exam or test (92134).
Where did Dr. Heidi Ellen Houlihan go to medical school?
Dr. Houlihan graduated from Lewis Katz School of Medicine in 2000.
What drugs does Dr. Heidi Ellen Houlihan prescribe most?
In 2024 Medicare Part D data, Dr. Houlihan's most prescribed drugs by claims were Latanoprost, Timolol Maleate and Fluorometholone.
Has Dr. Heidi Ellen Houlihan received payments from drug or device companies?
CMS Open Payments shows $6,119 in general payments to Dr. Houlihan from 29 companies from 2016 to 2025. The largest total came from RxSight Inc.
How long has Dr. Heidi Ellen Houlihan been practicing?
Dr. Houlihan graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Heidi Ellen Houlihan accept?
Dr. Houlihan is in network with 16 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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