DR. JOHN DOUGLAS CLARK MD
NPI 1194798595
Internal Medicine - Critical Care Medicine in Spartanburg, SC

Q: What is John Clark's NPI number?

The NPI number for John Clark is 1194798595. It was assigned to this individual provider in the NPPES registry on February 8, 2006.

Q: What is John Clark's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for John Clark was last updated on December 28, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since February 08, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

2030 NORTH CHURCH PLACE, SPARTANBURG, SC 29303(864) 582-6858(864) 585-0999 Get Directions Write a Review

NPPES record last updated: December 28, 2015. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Dr. John Douglas Clark Md NPPES

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

DR. JOHN DOUGLAS CLARK MD (NPI 1194798595) is an individual critical care medicine provider in Spartanburg, South Carolina, licensed in South Carolina (19596) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Spartanburg Medical Center, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (1985).

NPPES Registry Identity

NPI1194798595

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameDR. JOHN DOUGLAS CLARKCredential: MD

Location Address2030 NORTH CHURCH PLACESpartanburg, SC 29303

Mailing AddressPo Box 4276Spartanburg, SC 29305 · (864) 582-6858 · Fax (864) 585-0999

Phone(864) 582-6858

Fax(864) 585-0999

Sole ProprietorYes

Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 1985

Enumeration DateFebruary 8, 2006

Last NPPES UpdateDecember 28, 2015

✔ NPI 1194798595 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in SC · 19596

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal MedicineTaxonomy 207R00000X · License 19596 (SC)

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 19596 (SC)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License 19596 (SC)

2030 NORTH CHURCH PLACE, Spartanburg, SC 29303

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Other Identifiers 8

Medicare PINAA6565019SC

Other290011227Railroad

Medicare UPINA98614

MedicaidT36609SC

Medicare PINA986143365

Medicare PINA986140281SC

Other290009501Railroad

Other8688SC · Mbpg's

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Douglas Clark Md 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 ID8426074238

PECOS Enrollment IDI20051020000955

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.

Areas of Expertise CMS Part B claims 22

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-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.

436 services105 patients

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.

335 services235 patients

Test to measure expiratory airflow and volume 94010

This 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.

243 services191 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

205 services176 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.

184 services172 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-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.

149 services54 patients

Critical care, first 30-74 minutes 99291

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.

91 services41 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

80 services80 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

79 services75 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This 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.

57 services57 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial 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.

50 services50 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

45 services41 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

41 services41 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

31 services31 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

31 services31 patients

Test to examine how well the lungs exchange gases 94729

This 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.

27 services27 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

26 services26 patients

Test to determine lung volumes using sensors 94726

25 services25 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

24 services24 patients

Aspiration of initial secretion of lung airway using an endoscope 31645

This procedure involves using a thin, flexible tube called an endoscope to collect initial secretions from your lung airway. This helps doctors diagnose and treat respiratory conditions. It's a safe, minimally invasive procedure.

23 services22 patients

Test to examine how well the lungs exchange gases 94729

19 services19 patients

Test to measure expiratory airflow and volume 94010

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Spartanburg Medical Center

Acute Care Hospitals · Spartanburg, SC

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number420007

Location101 E Wood StSpartanburg, SC 29303 · Spartanburg County

Emergency services Birthing friendly

Cherokee Medical Center

Acute Care Hospitals · Gaffney, SC

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number420043

Location1530 N Limestone StGaffney, SC 29340 · Cherokee County

Emergency services

Pelham Medical Center

Acute Care Hospitals · Greer, SC

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number420103

Location250 Westmoreland RoadGreer, SC 29651 · Greenville County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29303 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

$124.04 typical visit price

range $53.57 – $163.84

Typical copayment $31.01 (range $13.39 – $40.96)

Most-billed visit code 99204

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

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.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Reported Quality Measures

Chronic Obstructive Pulmonary Disease (COPD): Spirometry Evaluation

Percentage of patients aged 18 years and older with a diagnosis of COPD who had spirometry results documented

96%651 patients4/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.

100%2,823 patients5/55-star benchmark: 100%

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

51%607 patients2/55-star benchmark: 100%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

93%86 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

53%1,528 patients3/55-star benchmark: 100%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

97%599 patients4/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

24%599 patients2/55-star benchmark: 79%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 30

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

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

15 suppliers157 claims157 services$36.31 avg. paid by Medicare

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

3 suppliers26 claims51 services$1.48 avg. paid by Medicare

Small volume nonfiltered pneumatic nebulizer, disposable A7004

DME-Other DME · category DE000N

1 supplier20 claims40 services$1.04 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

15 suppliers247 claims247 services$88.77 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

16 suppliers242 claims634 services$34.24 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

13 suppliers88 claims506 services$19.71 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

8 suppliers43 claims240 services$15.63 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

17 suppliers139 claims139 services$57.75 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

18 suppliers236 claims236 services$18.50 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

9 suppliers20 claims20 services$8.12 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

13 suppliers217 claims218 services$15.77 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

18 suppliers352 claims1,954 services$2.33 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

7 suppliers14 claims14 services$7.59 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

15 suppliers172 claims172 services$12.29 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

7 suppliers114 claims121 services$16.80 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

2 suppliers27 claims27 services$100.87 avg. paid by Medicare

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) E0471

DME-Other DME · category DE001N

3 suppliers14 claims14 services$238.05 avg. paid by Medicare

High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each E0483

DME-Other DME · category DE000N

2 suppliers29 claims29 services$831.09 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

7 suppliers40 claims40 services$150.93 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

2 suppliers33 claims38 services$13.99 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

7 suppliers45 claims64 services$6.65 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

11 suppliers353 claims367 services$39.73 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

11 suppliers295 claims303 services$92.33 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

6 suppliers126 claims126 services$33.93 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

5 suppliers29 claims6,861 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

6 suppliers32 claims2,910 services$0.10 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

6 suppliers19 claims1,386 services$0.82 avg. paid by Medicare

Revefenacin inhalation solution, fda-approved final product, non-compounded, administered through dme, 1 microgram J7677

DME-Drugs Administered Through DME · category DG006N

2 suppliers11 claims57,750 services$0.15 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$31.22 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

12 suppliers68 claims68 services$25.31 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 9

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

CHARLES M FOGARTY, MD, PA

Internal Medicine (Pulmonary Disease)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6858

J.DOUGLAS CLARK, MD PC

Internal Medicine (Critical Care Medicine)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6858

WILSON P SMITH JR MD PA

Internal Medicine (Critical Care Medicine)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6858

LUNG AND CHEST MEDICAL ASSOCIATES

General Acute Care Hospital

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6703

LUNG AND CHEST MEDICAL ASSOCIATES, LLC

Nurse Practitioner (Family)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 528-6858

RAUL B CRUZ MD PA

Internal Medicine (Critical Care Medicine)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6858

RICO VINCENTE. I. MENDOZA,MD,PA

Internal Medicine (Critical Care Medicine)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6858

IKENNA F. ONYEBUEKE, MD PA

Internal Medicine (Critical Care Medicine)

2030 NORTH CHURCH PLACE
SPARTANBURG, SC 29303

Spartanburg County (864) 582-6858

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 John Clark's NPI number?

The NPI number for John Clark is 1194798595. It was assigned to this individual provider in the NPPES registry on February 8, 2006.

Where is John Clark located?

John Clark practices at 2030 North Church Place, Spartanburg, SC 29303. The listed phone number is (864) 582-6858.

What is John Clark's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is John Clark enrolled in Medicare?

Yes. John Clark 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.

What insurance does John Clark accept?

Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina, InStil Health and Molina Healthcare list John Clark 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 John Clark affiliated with any hospitals?

According to CMS data, John Clark is affiliated with Spartanburg Medical Center, Cherokee Medical Center and Pelham Medical Center.

When was this NPI record last updated?

The NPPES record for John Clark was last updated on December 28, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.