Dr. David Harrison Tassin, MD

  • Spring, TX
  • General surgeon
NPI1982082236PAC ID3971999467
Industry payments
$63
Affiliated sites
1
Medical groups
2
Insurance carriers
20
State licenses
3
Practice address
7111 5 Forks Dr, Spring, TX 77379
Practice phone
Call (281) 212-3000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

City Ambulance Service

Spring, Texas

See all 4 affiliations

Find Dr. Tassin'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.

View contacts for free

Dr. David Harrison Tassin is a general surgeon in Spring, Texas

Dr. Tassin practices at City Ambulance Service in Spring, Texas.

Dr. Tassin's NPI, 1982082236, was assigned on May 7, 2015. Dr. Tassin graduated from UT Southwestern Medical Center in 2015. Dr. Tassin holds Texas license T4596.

NPI and contact details
Medicare PAC ID
3971999467
NPI enumeration date
May 7, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(281) 212-3000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. David Harrison Tassin practices at City Ambulance Service in Spring, Texas

Dr. Tassin's primary practice is City Ambulance Service, at 7111 5 Forks Dr, Spring, TX 77379 in Harris County. The practice phone is (281) 212-3000.

  • City Ambulance Service
    7111 5 Forks Dr, Spring, TX 77379 · Harris CountyPhone(281) 212-3000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. David Harrison Tassin is affiliated with 2 sites of care and 2 medical groups

Dr. Tassin's primary practice is City Ambulance Service in Spring, Texas. The medical group on file is Baylor Scott & White Temple Roney Bone and Joint Institute, Temple. Dmand AI also links Dr. Tassin to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Tassin

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. David Harrison Tassin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tassin practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
City Ambulance ServiceAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Tassin practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. David Harrison Tassin is one of 1,939 general surgeons in Texas

Surgery is Dr. Tassin's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Tassin is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Tassin's licenses on file in 3 states: Texas, Colorado and Virginia.

Specialties and state licenses

  • Surgery, TexasPrimaryLicense T4596 · 2021 to 2026 · taxonomy 208600000X
  • Colorado license2022 to 2027
  • Virginia license2016 to 2024

Clinical focus

Dmand AI lists sepsis among the conditions Dr. Tassin treats.

General surgeons near Dr. Tassin

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

1,939general surgeons in Texas
4general surgeons in Spring

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. David Harrison Tassin's patients have a median age of 53

Across all payers, Dmand AI patient panel data puts Dr. Tassin's median patient age at 53, with 69% women.

Dr. Tassin's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women69%
  • Men31%

Source: Dmand AI Patient Panel Data

How Dr. David Harrison Tassin takes part in Medicare

Dr. Tassin 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)

Dr. David Harrison Tassin received $63 in industry payments in 2024

CMS Open Payments shows 1 general payment to Dr. Tassin from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $63.

Companies that paid Dr. Tassin the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Tassin

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. David Harrison Tassin graduated from UT Southwestern Medical Center

Dr. Tassin graduated from UT Southwestern Medical Center in 2015.

  1. Medical schoolUT Southwestern Medical Center
  2. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. David Harrison Tassin accepts plans from 20 insurance carriers

Dr. Tassin is in network with 20 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Dr. Tassin accepts, by number of carriers

  1. PPO12
  2. HMO11
  3. Medicare9
  4. POS6
  5. EPO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. David Harrison Tassin's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. David Harrison Tassin

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. David Harrison Tassin's NPI number?

Dr. David Harrison Tassin's NPI number is 1982082236. It was assigned on May 7, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. David Harrison Tassin?

Dr. David Harrison Tassin is a general surgeon in Spring, Texas. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. David Harrison Tassin practice?

Dr. Tassin practices at 7111 5 Forks Dr, Spring, TX 77379. Dr. Tassin's primary practice is City Ambulance Service in Spring, Texas. Dmand AI also links Dr. Tassin to 1 group practice or clinic and 1 medical group.

What is Dr. David Harrison Tassin's office phone number?

The practice phone on file for Dr. Tassin is (281) 212-3000.

What is Dr. David Harrison Tassin's medical license number?

Dr. Tassin holds Texas license T4596, one of the licenses on file in 3 states.

Which states has Dr. David Harrison Tassin been licensed in?

Dmand AI has state licenses on file for Dr. Tassin in Texas (2021 to 2026), Colorado (2022 to 2027) and Virginia (2016 to 2024).

What medical group is Dr. David Harrison Tassin part of?

Dr. Tassin is linked to Baylor Scott & White Temple Roney Bone and Joint Institute, Temple. Dmand AI links Dr. Tassin to 1 more medical group.

Does Dr. David Harrison Tassin accept Medicare?

Yes. CMS lists Dr. Tassin as accepting Medicare assignment.

Is Dr. David Harrison Tassin board certified?

Yes. Dr. Tassin is board certified in surgery by the American Board of Surgery.

Where did Dr. David Harrison Tassin go to medical school?

Dr. Tassin graduated from UT Southwestern Medical Center in 2015.

Show 3 more questionsShow fewer questions

Has Dr. David Harrison Tassin received payments from drug or device companies?

CMS Open Payments shows $63 in general payments to Dr. Tassin from 1 company from 2024 to 2024. The largest total came from Intuitive Surgical, Inc.

How long has Dr. David Harrison Tassin been practicing?

Dr. Tassin graduated from medical school in 2015, 11 years ago.

What insurance does Dr. David Harrison Tassin accept?

Dr. Tassin is in network with 20 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Selling to surgery practices?

See general surgeons in Texas by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)