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MARK RASMUSSON M.D.
NPI 1598881948
Internal Medicine in Corpus Christi, TX

Active since March 21, 2007PECOS EnrolledAccepts Medicare Assignment
24.11/100
CMS Quality Rating
3921 W RIVER DR STE 5, CORPUS CHRISTI, TX 78410(361) 387-6587(361) 387-6589 Get Directions Write a Review

NPPES record last updated: January 3, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mark Rasmusson M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK RASMUSSON M.D. (NPI 1598881948) is an individual internal medicine provider in Corpus Christi, Texas, licensed in Texas (G9517) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Christus Spohn Hospital Corpus Christi, and is a graduate of University Of Nebraska College Of Medicine (1981).

NPPES Registry Identity

NPI1598881948
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK RASMUSSONCredential: M.D.
Location Address3921 W RIVER DR STE 5Corpus Christi, TX 78410-5736
Mailing Address3921 W River Dr Ste 5Corpus Christi, TX 78410-5736 · (361) 387-6587 · Fax (361) 387-6589
Phone(361) 387-6587
Fax(361) 387-6589
Sole ProprietorYes
Medical School CMSUniversity Of Nebraska College Of MedicineGraduated 1981
Enumeration DateMarch 21, 2007
Last NPPES UpdateJanuary 3, 2025
NPPES CertifiedJanuary 3, 2025
✔ NPI 1598881948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · G9517
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3921 W RIVER DR STE 5, Corpus Christi, TX 78410
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Rasmusson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880881226
PECOS Enrollment IDI20101210000098
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Rasmusson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mark D. Rasmusson, M.D., P.A.
Same address
Internal Medicine
3921 W RIVER DR STE 5
Corpus Christi, TX 78410
  • Reassigned Medicare billing, Texas enrollment
NPI 1851417240 (361) 387-6587

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
419 services199 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
166 services95 patients
Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420
This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.
166 services92 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
129 services81 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
124 services86 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
55 services46 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus Spohn Hospital Corpus Christi

Acute Care Hospitals · Corpus Christi, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450046
Location600 Elizabeth StreetCorpus Christi, TX 78404 · Nueces County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78410 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

24.11/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost80.39

Referred Medical Equipment & Supplies CMS DME claims 14

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers11 claims36 services$7.03 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
2 suppliers16 claims16 services$38.54 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
2 suppliers21 claims21 services$105.11 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers23 claims60 services$39.71 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
3 suppliers15 claims15 services$20.28 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers24 claims128 services$2.70 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARK D. RASMUSSON, M.D., P.A.
Internal Medicine
3921 W RIVER DR STE 5
CORPUS CHRISTI, TX 78410
Nueces County (361) 387-6587

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Rasmusson's NPI number?

The NPI number for Mark Rasmusson is 1598881948. It was assigned to this individual provider in the NPPES registry on March 21, 2007.

Where is Mark Rasmusson located?

Mark Rasmusson practices at 3921 W River Dr Ste 5, Corpus Christi, TX 78410. The listed phone number is (361) 387-6587.

What is Mark Rasmusson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Rasmusson enrolled in Medicare?

Yes. Mark Rasmusson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mark Rasmusson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Rasmusson reassigns Medicare benefits to Mark D. Rasmusson, M.D., P.A. (Corpus Christi, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Rasmusson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Rasmusson accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Mark Rasmusson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Rasmusson affiliated with any hospitals?

According to CMS data, Mark Rasmusson is affiliated with Christus Spohn Hospital Corpus Christi.

When was this NPI record last updated?

The NPPES record for Mark Rasmusson was last updated on January 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.