TIMOTHY M CLARK MD
NPI 1043265663
Internal Medicine - Pulmonary Disease in Boulder, CO
NPI Status: Active since May 23, 2006
Contact Information
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
Phone: (303) 415-5399
Fax: (303) 297-5808
- Individual
- Male
- Years of Experience 32
- Internal Medicine
- Pulmonary Disease
- Accepts Medicare Approved Payment
- PECOS Enrolled
About TIMOTHY CLARK
This page provides the complete NPI Profile along with additional information for Timothy Clark, an internist established in Boulder, Colorado with a medical specialization in Internal Medicine, focusing in pulmonary disease and more than 32 years of experience. He graduated from Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University in 1994. The healthcare provider is registered in the NPI registry with number 1043265663 assigned on May 2006. The practitioner's primary taxonomy code is 207RP1001X with license number 38716 (CO). The provider is registered as an individual and his NPI record was last updated 6 years ago.
- NPI
- 1043265663
- Provider Name
- TIMOTHY M CLARK MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4820 RIVERBEND RD STE 100 BOULDER, CO 80301
- Location Phone
- (303) 415-5399
- Location Fax
- (303) 297-5808
- Mailing Address
- 5450 WESTERN AVE BOULDER, CO 80301
- Mailing Phone
- (303) 415-5399
- Mailing Fax
- (303) 297-5808
- Medical School Name
- CLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
- Graduation Year
- 1994
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-23-2006
- Last Update Date
- 05-10-2019
- Code Navigator
An internist like Timothy Clark 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
Secondary Locations
- 90 Health Park Dr Ste 130
Louisville, CO 80027
(303) 415-5399
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 Pulmonary Disease
- Taxonomy Code
- 207RP1001X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 38716
- License State
- CO
- Taxonomy Description
- An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
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 | 207RC0200X | Allopathic & Osteopathic Physicians | Internal Medicine | 38716 (CO) |
Medicare Participation & PECOS Enrollment Status
Timothy Clark is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Timothy Clark 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
PECOS PAC ID: 7315081080
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20100218000393
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.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-Other DME (DE001N)
Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)
10 DME suppliers used 96 Medicare Claims 96 Services Paid
DME-Other DME (DE001N)
Full face mask used with positive airway pressure device, each (HCPCS:A7030)
14 DME suppliers used 77 Medicare Claims 77 Services Paid
DME-Other DME (DE001N)
Face mask interface, replacement for full face mask, each (HCPCS:A7031)
13 DME suppliers used 77 Medicare Claims 220 Services Paid
DME-Other DME (DE001N)
Cushion for use on nasal mask interface, replacement only, each (HCPCS:A7032)
10 DME suppliers used 30 Medicare Claims 177 Services Paid
DME-Other DME (DE001N)
Pillow for use on nasal cannula type interface, replacement only, pair (HCPCS:A7033)
7 DME suppliers used 26 Medicare Claims 140 Services Paid
DME-Other DME (DE001N)
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)
12 DME suppliers used 60 Medicare Claims 60 Services Paid
DME-Other DME (DE001N)
Headgear used with positive airway pressure device (HCPCS:A7035)
15 DME suppliers used 78 Medicare Claims 78 Services Paid
DME-Other DME (DE001N)
Tubing used with positive airway pressure device (HCPCS:A7037)
8 DME suppliers used 32 Medicare Claims 32 Services Paid
DME-Other DME (DE001N)
Filter, disposable, used with positive airway pressure device (HCPCS:A7038)
16 DME suppliers used 128 Medicare Claims 724 Services Paid
DME-Other DME (DE001N)
Filter, non disposable, used with positive airway pressure device (HCPCS:A7039)
6 DME suppliers used 17 Medicare Claims 17 Services Paid
DME-Other DME (DE001N)
Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)
13 DME suppliers used 66 Medicare Claims 66 Services Paid
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)
5 DME suppliers used 91 Medicare Claims 93 Services Paid
DME-Other DME (DE005N)
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) (HCPCS:E0466)
1 DME suppliers used 12 Medicare Claims 12 Services Paid
DME-Other DME (DE001N)
Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) (HCPCS:E0471)
4 DME suppliers used 18 Medicare Claims 18 Services Paid
DME-Other DME (DE001N)
Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)
2 DME suppliers used 22 Medicare Claims 22 Services Paid
DME-Other DME (DE001N)
Continuous positive airway pressure (cpap) device (HCPCS:E0601)
10 DME suppliers used 118 Medicare Claims 118 Services Paid
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)
12 DME suppliers used 293 Medicare Claims 296 Services Paid
DME-Oxygen and Supplies (DC002N)
Portable oxygen concentrator, rental (HCPCS:E1392)
3 DME suppliers used 18 Medicare Claims 18 Services Paid
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:K0738)
5 DME suppliers used 47 Medicare Claims 47 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.
Critical care, first 30-74 minutes
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Follow-up hospital inpatient care per day, typically 25 minutes
Follow-up hospital inpatient care per day, typically 35 minutes
Initial hospital inpatient care per day, typically 70 minutes
New patient office or other outpatient visit, 30-44 minutes
New patient office or other outpatient visit, 45-59 minutes
Test to determine lung volumes using gas dilution or washout
Test to examine how well the lungs exchange gases
Test to measure expiratory airflow and volume
Test to measure expiratory airflow and volume changes before and after medication administration
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
This service was performed 67 times for 22 patientsThis 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.
This service was performed 139 times for 127 patientsThis 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.
This service was performed 198 times for 134 patientsThis 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.
This service was performed 27 times for 23 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 34 times for 26 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 153 times for 56 patientsInitial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
This service was performed 39 times for 37 patientsThis service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
This service was performed 12 times for 12 patientsThis is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
This service was performed 77 times for 77 patientsThis test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.
This service was performed 122 times for 118 patientsThis is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
This service was performed 127 times for 121 patientsThis test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
This service was performed 64 times for 64 patientsThis procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.
This service was performed 69 times for 67 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $33.13 for a new patient copayment and $25.5 for an established patient copayment.
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 80301 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $132.55
- Minimum New Patient Price $58.06
- Maximum New Patient Price $174.82
- Average New Patient Copayment $33.13
- Minimum New Patient Copayment $14.51
- Maximum New Patient Copayment $43.7
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $102.03
- Minimum Established Patient Price $18.88
- Maximum Established Patient Price $142.79
- Average Established Patient Copayment $25.5
- Minimum Established Patient Copayment $4.72
- Maximum Established Patient Copayment $35.69
* 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 Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
1 | 0 | 4 | 3 | 2 | 6 | 5 | 6 | 6 | 3 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 0 | 8 | 3 | 4 | 6 | 10 | 6 | 12 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 0 + 8 + 3 + 4 + 6 + 1 + 0 + 6 + 1 + 2 + 24 = 57 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
60 - 57 = 3 | 3 |
The NPI number 1043265663 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 7 providers are registered at the same or nearby location.
THOMAS MATTHEW WILCOX DO
Internal Medicine
(Pulmonary Disease)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
DR. THOMAS A MINOR M.D.
Internal Medicine
(Pulmonary Disease)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
DR. HUNTER RUSSELL SMITH M.D.
Internal Medicine
(Pulmonary Disease)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
SAMUEL CLARK BERNGARD M.D.
Internal Medicine
(Pulmonary Disease)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
BOULDER COMMUNITY HEALTH
Clinic/Center
(Medical Specialty)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
ALISON VAN VOORHEES DAVIS NP, RN
Nurse Practitioner
(Family)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
KELLY MORGENSTEIN PAC
Physician Assistant
(Medical)
4820 RIVERBEND RD STE 100
BOULDER, CO
ZIP 80301
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1043265663, enumerated in the NPI registry as an "individual" on May 23, 2006
The provider is located at 4820 Riverbend Rd Ste 100 Boulder, Co 80301 and the phone number is (303) 415-5399
The provider's speciality is Internal Medicine with taxonomy code 207RP1001X with a focus in Pulmonary Disease
The provider has more than 32 years of experience. He graduated from Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University in 1994.
Yes, as of July 06, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary 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.
Medicare beneficiaries should expect a typical cost of $132.55 with an average copayment of $33.13 for new patient appointments. Established patients should expect a typical charge of $102.03 and an average copayment of 25.5. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Critical care, first 30-74 minutes, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Established patient office or other outpatient visit, 40-54 minutes, Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Initial hospital inpatient care per day, typically 70 minutes, New patient office or other outpatient visit, 30-44 minutes, New patient office or other outpatient visit, 45-59 minutes, Test to determine lung volumes using gas dilution or washout, Test to examine how well the lungs exchange gases, Test to measure expiratory airflow and volume and Test to measure expiratory airflow and volume changes before and after medication administration.
This NPI record was last updated on May 23, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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