Dr. Richard J. Hahn, MD
- Medicare services, 2023
- 20
- Part D claims, 2024
- 52
- Industry payments
- $2,395
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 1523 W Ave J Suite 7 Suite 7, Lancaster, CA 93534-2819
- Practice phone
- Call (661) 945-2221
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Av Pediatrics, Allergy & Family Medicine
Multi-specialty group site · Lancaster, California
Find Dr. Hahn'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. Richard J. Hahn is a general surgeon in Lancaster, California
Dr. Hahn practices at Av Pediatrics, Allergy & Family Medicine in Lancaster, California.
Dr. Hahn's NPI, 1508927997, was assigned on December 12, 2006. Dr. Hahn graduated from Keck School of Medicine of USC in 1972. Dr. Hahn holds California license G25115.
- NPI
- 1508927997NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951489491
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (661) 945-2221
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard J. Hahn practices at Av Pediatrics, Allergy & Family Medicine in Lancaster, California
Dr. Hahn's primary practice is Av Pediatrics, Allergy & Family Medicine, at 1523 W Ave J Suite 7 Suite 7, Lancaster, CA 93534-2819. The practice phone is (661) 945-2221.
- Av Pediatrics, Allergy & Family Medicine1523 W Ave J Suite 7 Suite 7, Lancaster, CA 93534-2819Phone(661) 945-2221
Source: Dmand AI Affiliation Data
Dr. Richard J. Hahn is affiliated with 1 site of care and 2 medical groups
Dr. Hahn's primary practice is Av Pediatrics, Allergy & Family Medicine in Lancaster, California. The medical group on file is AV Pediatrics, Allergy & Family Medicine. Dmand AI also links Dr. Hahn to 1 more medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Richard J. Hahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hahn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Av Pediatrics, Allergy & Family Medicine | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard J. Hahn is one of 2,926 general surgeons in California
Surgery is Dr. Hahn's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hahn is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Hahn
Counts of general 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. Richard J. Hahn billed Medicare for 20 services in 2023
CMS data shows 20 Medicare services from Dr. Hahn across 1 procedure code in 2023, all of them office visits. Medicare paid $737 for them. Every service was in an office.
Dr. Hahn's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 312023: 2035%
Dr. Hahn compared with the California median for general surgeons, 2023
- Dr. Hahn
- California median
- Medicare services
- 20vs 16688% below
- Part D claims
- 34vs 34Close to median
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Hahn's most billed Medicare procedure codes, 2023
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. Hahn and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard J. Hahn's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Hahn's median patient age at 67, with 65% women.
Dr. Hahn'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
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Richard J. Hahn wrote 52 Medicare Part D claims in 2024
In 2024, Dr. Hahn wrote 52 Medicare Part D claims. 69% of them were for generic drugs. CMS names the drug for 34 of them, across 3 drugs with 11 or more claims each, at $6,511 in total drug cost. In 2023, CMS named 47 claims across 4 drugs.
Dr. Hahn's Part D claims by kind of drug, 2024
- Generic36 claims69%
- Brand-name16 claims31%
Dr. Hahn'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: 472024: 3428%
Drugs named by CMS: 3 in 2024, 4 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. Richard J. Hahn offers telehealth to Medicare patients
CMS lists Dr. Hahn as offering telehealth.
- Offers telehealth
- Yes
Removal of skin lesions: 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. Richard J. Hahn received $2,395 in industry payments from 2016 to 2025
CMS Open Payments shows 101 general payments to Dr. Hahn from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $1,978.
General payments to Dr. Hahn by program year, 2016 to 2025
Companies that paid Dr. Hahn 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. Richard J. Hahn has 1 award and honors on record
Dmand AI lists 1 award for Dr. Hahn.
Awards and honors for Dr. Hahn
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Richard J. Hahn graduated from Keck School of Medicine of USC
Dr. Hahn graduated from Keck School of Medicine of USC in 1972. Dr. Hahn is a member of ACS.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Richard J. Hahn accepts plans from 13 insurance carriers
Dr. Hahn is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Molina
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Hahn accepts, by number of carriers
- PPO8
- HMO7
- Medicare6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Richard J. Hahn'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 Data |
| 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) |
| 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. Richard J. Hahn
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. Richard J. Hahn's NPI number?
Dr. Richard J. Hahn's NPI number is 1508927997. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard J. Hahn?
Dr. Richard J. Hahn is a general surgeon in Lancaster, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Richard J. Hahn practice?
Dr. Hahn practices at 1523 W Ave J Suite 7 Suite 7, Lancaster, CA 93534-2819. Dr. Hahn's primary practice is Av Pediatrics, Allergy & Family Medicine in Lancaster, California. Dmand AI also links Dr. Hahn to 1 medical group.
What is Dr. Richard J. Hahn's office phone number?
The practice phone on file for Dr. Hahn is (661) 945-2221.
What is Dr. Richard J. Hahn's medical license number?
Dr. Hahn holds California license G25115.
What medical group is Dr. Richard J. Hahn part of?
Dr. Hahn is linked to AV Pediatrics, Allergy & Family Medicine. Dmand AI links Dr. Hahn to 1 more medical group.
Does Dr. Richard J. Hahn accept Medicare?
Yes. CMS data shows Dr. Hahn billed Medicare for 20 services in 2023.
Does Dr. Richard J. Hahn offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hahn as offering telehealth services.
What services does Dr. Richard J. Hahn bill to Medicare?
In 2023, Dr. Hahn's most billed Medicare services were office visit, established patient (99212).
Where did Dr. Richard J. Hahn go to medical school?
Dr. Hahn graduated from Keck School of Medicine of USC in 1972.
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What drugs does Dr. Richard J. Hahn prescribe most?
In 2024 Medicare Part D data, Dr. Hahn's most prescribed drugs by claims were Amlodipine Besylate, Jardiance and Pravastatin Sodium.
Has Dr. Richard J. Hahn received payments from drug or device companies?
CMS Open Payments shows $2,395 in general payments to Dr. Hahn from 5 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Richard J. Hahn been practicing?
Dr. Hahn graduated from medical school in 1972, 54 years ago.
What insurance does Dr. Richard J. Hahn accept?
Dr. Hahn is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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