Mark A. Bookspan
- Medicare services, 2024
- 1,206
- Medicare patients, 2024
- 207
- Part D claims, 2024
- 176
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 400 West Pueblo, Santa Barbara, CA 93105
- Practice phone
- Call (805) 682-7111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mark Bookspan'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.
Mark A. Bookspan is an internist in Santa Barbara, California
Mark Bookspan practices at Santa Barbara Cottage Hospital in Santa Barbara, California, part of Cottage Health.
Mark Bookspan's NPI, 1104908292, was assigned on October 19, 2006. Mark Bookspan graduated from University of Toledo College of Medicine and Life Sciences in 1972. Mark Bookspan holds California license G36429.
- NPI
- 1104908292NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810988904
- NPI enumeration date
- October 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 682-7111
- 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)
Mark A. Bookspan practices at Santa Barbara Cottage Hospital in Santa Barbara, California
Mark Bookspan's primary practice is Santa Barbara Cottage Hospital, at 400 West Pueblo, Santa Barbara, CA 93105 in Santa Barbara County. The practice phone is (805) 682-7111.
- Santa Barbara Cottage Hospital400 West Pueblo, Santa Barbara, CA 93105 · Santa Barbara CountyPhone(805) 682-7111
Source: Dmand AI Affiliation Data
Mark A. Bookspan is affiliated with 1 site of care and 2 medical groups
Mark Bookspan's primary practice is Santa Barbara Cottage Hospital in Santa Barbara, California, part of Cottage Health. The medical group on file is Physicians' Medical Group. Dmand AI also links Mark Bookspan to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark A. Bookspan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Bookspan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Barbara Cottage Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Cottage Health and 6.2K+ hospitals, with verified contacts in the same login.
Mark A. Bookspan is one of 16,751 internists in California
Internal medicine is Mark Bookspan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Mark Bookspan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Mark Bookspan's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists acute respiratory failure, bone infection, cardiac arrhythmia, cellulitis, circulation problems, circulatory problems in extremities, cirrhosis and congestive heart failure among the conditions Mark Bookspan treats.
Internists near Mark Bookspan
Counts of internists 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
Mark A. Bookspan billed Medicare for 1,206 services in 2024
CMS data shows 1,206 Medicare services from Mark Bookspan across 3 procedure codes in 2024, for 207 Medicare patients. Medicare paid $86,229 for them. Every service was in a facility, such as a hospital, rather than an office.
Mark Bookspan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2672024: 1,2065%
Mark Bookspan compared with the California median for internists, 2024
- Mark Bookspan
- California median
- Medicare services
- 1,206vs 3613.3 times
- Medicare patients
- 207vs 15137% above
- Part D claims
- 85vs 42180% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Mark Bookspan'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.
Need commercial claims for Mark Bookspan?
Medicare shows one payer. Book a meeting to get commercial claims data for Mark Bookspan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mark A. Bookspan treated 207 Medicare patients in 2024, average age 72
CMS counts 207 Medicare patients who saw Mark Bookspan in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 81% are also on Medicaid. Their average risk score is 2.92, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mark Bookspan's median patient age at 78, with 67% women.
Mark Bookspan's Medicare patients by age, 2024
Mark Bookspan's Medicare patients by sex, 2024
- Women10450%
- Men10350%
Chronic conditions among Mark Bookspan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis56%
- Diabetes48%
- Chronic kidney disease47%
- Heart failure45%
- Ischemic heart disease43%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Mark Bookspan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark A. Bookspan wrote 176 Medicare Part D claims in 2024
In 2024, Mark Bookspan wrote 176 Medicare Part D claims for 19 patients. 33% of them were for generic drugs. CMS names the drug for 85 of them, across 5 drugs with 11 or more claims each, at $453,125 in total drug cost. In 2023, CMS named 133 claims across 8 drugs.
Mark Bookspan's Part D claims by kind of drug, 2024
- Generic58 claims33%
- Brand-name118 claims67%
Mark Bookspan'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: 1332024: 8536%
Drugs named by CMS: 5 in 2024, 8 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 Mark A. Bookspan takes part in Medicare
Mark Bookspan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Mark A. Bookspan has 2 publications on record
Dmand AI links 2 papers to Mark Bookspan. Mark Bookspan's most frequent co-authors are Stuart Paul Brogadir, MD and Esther M. Sewell, MD.
Mark Bookspan's most frequent co-authors
Recent publications by Mark Bookspan
Clin Chest Med
See who Mark Bookspan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Mark Bookspan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Mark A. Bookspan received $1,810 in industry payments from 2016 to 2023
CMS Open Payments shows 22 general payments to Mark Bookspan from 11 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $334.
General payments to Mark Bookspan by program year, 2016 to 2023
Companies that paid Mark Bookspan the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark A. Bookspan graduated from University of Toledo College of Medicine and Life Sciences
Mark Bookspan graduated from University of Toledo College of Medicine and Life Sciences in 1972.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Mark A. Bookspan accepts plans from 1 insurance carrier
Mark Bookspan is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Mark A. Bookspan'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Mark A. Bookspan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark A. Bookspan's NPI number?
Mark A. Bookspan's NPI number is 1104908292. It was assigned on October 19, 2006, and it is active in the NPI Registry.
What does Mark A. Bookspan specialize in?
Mark A. Bookspan is an internist in Santa Barbara, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Mark A. Bookspan practice?
Mark Bookspan practices at 400 West Pueblo, Santa Barbara, CA 93105. Mark Bookspan's primary practice is Santa Barbara Cottage Hospital in Santa Barbara, California, part of Cottage Health. Dmand AI also links Mark Bookspan to 1 medical group.
What is Mark A. Bookspan's office phone number?
The practice phone on file for Mark Bookspan is (805) 682-7111.
What is Mark A. Bookspan's medical license number?
Mark Bookspan holds California license G36429, one of the licenses on file in 2 states.
Which states has Mark A. Bookspan been licensed in?
Dmand AI has state licenses on file for Mark Bookspan in California (1978 to 2026) and Pennsylvania (1975 to 1978).
Which hospitals is Mark A. Bookspan affiliated with?
Mark Bookspan practices at Santa Barbara Cottage Hospital in Santa Barbara, California.
What medical group is Mark A. Bookspan part of?
Mark Bookspan is linked to Physicians' Medical Group. Dmand AI links Mark Bookspan to 1 more medical group.
Does Mark A. Bookspan accept Medicare?
Yes. CMS data shows Mark Bookspan billed Medicare for 1,206 services in 2024, and Mark Bookspan accepts Medicare assignment.
How many Medicare patients does Mark A. Bookspan see?
CMS counts 207 Medicare patients who saw Mark Bookspan in 2024, with an average age of 72.
Show 9 more questionsShow fewer questions
Is Mark A. Bookspan board certified?
Yes. Mark Bookspan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Mark A. Bookspan bill to Medicare?
In 2024, Mark Bookspan's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and hospital inpatient care (99238).
Where did Mark A. Bookspan go to medical school?
Mark Bookspan graduated from University of Toledo College of Medicine and Life Sciences in 1972.
What drugs does Mark A. Bookspan prescribe most?
In 2024 Medicare Part D data, Mark Bookspan's most prescribed drugs by claims were Benlysta, Humira Pen and Xeljanz.
Has Mark A. Bookspan received payments from drug or device companies?
CMS Open Payments shows $1,810 in general payments to Mark Bookspan from 11 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Mark A. Bookspan been practicing?
Mark Bookspan graduated from medical school in 1972, 54 years ago.
Does Mark A. Bookspan do research?
Dmand AI links 2 publications to Mark Bookspan.
Who does Mark A. Bookspan publish with?
Mark Bookspan's most frequent co-authors are Stuart Paul Brogadir, MD (1 shared paper) and Esther M. Sewell, MD (1 shared paper).
What insurance does Mark A. Bookspan accept?
Mark Bookspan is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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