DR. MARK A TOMAS DO, MPH
NPI 1942539986
Internal Medicine in Gig Harbor, WA
NPI Status: Active since December 22, 2009
Contact Information
4700 POINT FOSDICK DR STE 208
GIG HARBOR, WA
ZIP 98335
Phone: (523) 400-0218
Fax: (253) 500-0218
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Male
- Internal Medicine
- Accepts Insurance
- PECOS Enrolled
About MARK TOMAS
This page provides the complete NPI Profile along with additional information for Mark Tomas, an internist established in Gig Harbor, Washington with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1942539986 assigned on December 2009. The practitioner's primary taxonomy code is 207R00000X with license number OP61387438 (WA). The provider is registered as an individual and his NPI record was last updated May 2026.
- NPI
- 1942539986
- Provider Name
- DR. MARK A TOMAS DO, MPH
- Other Name
- MARK R ALLEN DO, MPH
- Other Name Type
- Former Name (1)
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4700 POINT FOSDICK DR STE 208 GIG HARBOR, WA 98335
- Location Phone
- (523) 400-0218
- Location Fax
- (253) 500-0218
- Mailing Address
- 4700 POINT FOSDICK DR STE 208 GIG HARBOR, WA 98335
- Mailing Phone
- (253) 563-0218
- Mailing Fax
- (253) 500-0218
- Is Sole Proprietor?
- No
- Enumeration Date
- 12-22-2009
- Last Update Date
- 05-29-2026
- Code Navigator
An internist like Mark Tomas is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- OP61387438
- License State
- WA
- Taxonomy Description
- 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.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | P2090 (TX) |
| 2 | 208M00000X | Allopathic & Osteopathic Physicians | Hospitalist | OP61387438 (WA) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
- Premera Blue Cross Alaska One Gold - PPO
- Premera Blue Cross Preferred Bronze 5800 HSA - PPO
- Premera Blue Cross Preferred Bronze 6350 - PPO
- Premera Blue Cross Preferred Gold 1500 - PPO
- Premera Blue Cross Preferred Silver 4500 - PPO
- Premera Blue Cross Standard Bronze II - PPO
- Premera Blue Cross Standard Gold - PPO
- Premera Blue Cross Standard Silver - PPO
- Premera Blue Cross Family Dental - PPO
- Premera Blue Cross Pediatric Dental - PPO
- HSA-E Qualified 7500 Bronze - Signature Network - EPO
- Providence Oregon Standard Bronze Plan - Signature Network - EPO
- Providence Oregon Standard Gold Plan - Signature Network - EPO
- Providence Oregon Standard Silver Plan - Signature Network - EPO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 2243330 | MEDICAID (05) | WA | |
| 303454101 | MEDICAID (05) | TX | |
| 3034241-02 | MEDICAID (05) | TX |
Medicare Participation & PECOS Enrollment Status
Mark Tomas is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Oxygen and Supplies (DC002N)
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)
3 DME suppliers used 14 Medicare Claims 14 Services Paid
DME-Oxygen and Supplies (DC002N)
Portable oxygen concentrator, rental (HCPCS:E1392)
3 DME suppliers used 13 Medicare Claims 13 Services Paid
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Hospital discharge day management, 30 minutes or less
Hospital discharge day management, more than 30 minutes
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
This service was performed 45 times for 44 patientsHospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
This service was performed 49 times for 48 patientsFollow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
This service was performed 281 times for 139 patientsFollow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
This service was performed 176 times for 113 patientsFollow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
This service was performed 70 times for 34 patientsPhysician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 98335 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $130.99
- Minimum New Patient Price $57.27
- Maximum New Patient Price $172.8
- Average New Patient Copayment $32.74
- Minimum New Patient Copayment $14.31
- Maximum New Patient Copayment $43.2
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $100.78
- Minimum Established Patient Price $18.56
- Maximum Established Patient Price $141.11
- Average Established Patient Copayment $25.19
- Minimum Established Patient Copayment $4.64
- Maximum Established Patient Copayment $35.27
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1942539986, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 74 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
GIG HARBOR, WA 98335
GIG HARBOR, WA 98335
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1942539986, enumerated as an "individual" on December 22, 2009.
The provider is located at 4700 POINT FOSDICK DR STE 208 GIG HARBOR, WA 98335 and the phone number is (523) 400-0218.
Internal Medicine with taxonomy code 207R00000X.
The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, Premera Blue. Please consult your insurance carrier or call the provider to verify.
