Dr. Douglas Mark Hackman , DC
Chiropractor • Irvine, CA
6 Venture, Suite #115
Irvine, CA 926183340
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on November 10, 2006; this date does not establish years in practice.
-
Published CMS data list 157 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 98941 — Chiropractic manipulative treatment, 3-4 spinal regions: 157 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
-
Fewer Medicare Part B services than 85% of clinicians listed under Chiropractor in Irvine, CA (2024, 17 clinicians with data). Median for this group: 404. Middle half: 201 to 492.
Fewer Medicare Part B services than 80% of clinicians listed under Chiropractor in California (2024, 2,142 clinicians with data). Median for this group: 362. Middle half: 186 to 698.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 118 in 2020 to 157 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
6 Venture
Suite #115
Irvine, CA 926183340
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Disiena Family Chiropractic, A Prof Corp. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Cleveland Chiropractic College - Los Angeles
1984
What Public CMS Data Show
Chiropractor: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
23 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $6,324 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $4,537 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
42 years (graduated 1984)
CMS Doctors and Clinicians data list 1984 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Hackman has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Irvine and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Chiropractor in Irvine, CA (2024, 17 clinicians with data). Median for this group: 404. Middle half: 201 to 492.
Fewer Medicare Part B services than 80% of clinicians listed under Chiropractor in California (2024, 2,142 clinicians with data). Median for this group: 362. Middle half: 186 to 698.
Medicare-allowed amount
A lower Medicare-allowed amount than 85% of clinicians listed under Chiropractor in Irvine, CA (2024, 17 clinicians with data). Median for this group: $17,122. Middle half: $7,806 to $22,526.
A lower Medicare-allowed amount than 75% of clinicians listed under Chiropractor in California (2024, 2,142 clinicians with data). Median for this group: $14,317. Middle half: $7,290 to $27,976.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Chiropractor in Irvine, CA (2024, 17 clinicians with data). Median for this group: $12,375. Middle half: $5,626 to $15,980.
A lower Medicare payment amount than 75% of clinicians listed under Chiropractor in California (2024, 2,142 clinicians with data). Median for this group: $10,332. Middle half: $5,207 to $20,114.
136 active clinicians are listed under Chiropractor with a practice address in Irvine, CA (11,501 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Irvine
0% of these 136 clinicians have the CMS telehealth indicator.
14% of these 136 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services increased 33% from 118 in 2020 to 157 in 2024.
- 2020: 118
- 2021: 220
- 2022: 203
- 2023: 140
- 2024: 157
-
Medicare-allowed amount
Medicare-allowed amount increased 25% from $5,062 in 2020 to $6,324 in 2024.
- 2020: $5,062
- 2021: $9,253
- 2022: $8,396
- 2023: $5,743
- 2024: $6,324
-
Paid by Medicare
Paid by Medicare increased 18% from $3,833 in 2020 to $4,537 in 2024.
- 2020: $3,833
- 2021: $7,256
- 2022: $6,181
- 2023: $4,444
- 2024: $4,537
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
98941
Chiropractic manipulative treatment, 3-4 spinal regions
|
157 | 21 | $46.67 | $40.28 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 111N00000X
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CHIROPRACTIC
I20090330000381
CA
3173680527
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Disiena Family Chiropractic, A Prof Corp
6 Venture, Irvine, CA 926187347
Phone: 9495596030
Disiena Family Chiropractic, A Prof Corp
6 Venture, Irvine, CA 926183340
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Chiropractor
Doctor of Chiropractic
Career & Practice History
NPI enumerated November 10, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Chiropractors in Irvine
- Dr. Brent Smith, DC
- Dr. Robert Moore, DC
- Dr. Timothy Twombly, DC
- Dr. Roger Lee, DC
- Dr. Courtney Hays, DC
- Dr. Gary Martin, DC
Mailing Address
6 Venture, Suite #115
Irvine, CA 926183340
Phone: 9495596030