JOHN ROBERT GRIMSLEY
NPI 1568956886
Family Medicine in Fairfax, VA

NPI Status: Active since June 20, 2018

Contact Information

3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA
ZIP 22033
Phone: (703) 391-2020

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  • Individual
  • Male
  • Family Medicine
  • PECOS Enrolled
  • Opted-Out Medicare

About JOHN GRIMSLEY

This page provides the complete NPI Profile along with additional information for John Grimsley, a primary care provider established in Fairfax, Virginia with a medical specialization in Family Medicine. The healthcare provider is registered in the NPI registry with number 1568956886 assigned on June 2018. The practitioner's primary taxonomy code is 207Q00000X with license number 0116031698 (VA). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1568956886
Provider Name
JOHN ROBERT GRIMSLEY
Gender
Male
Entity Type
Individual
Location Address
3650 JOSEPH SIEWICK DR STE 400 FAIRFAX, VA 22033
Location Phone
(703) 391-2020
Mailing Address
3650 JOSEPH SIEWICK DR STE 400 FAIRFAX, VA 22033
Mailing Phone
(703) 391-2020
Is Sole Proprietor?
No
Enumeration Date
06-20-2018
Last Update Date
11-27-2023
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A primary care provider (PCP) like John Grimsley sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. John Grimsley opted out of Medicare effective on 02-08-2023 until 02-08-2025. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.

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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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
License No.
0116031698
License State
VA
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Medicare Participation & PECOS Enrollment Status

John Grimsley 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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 02-08-2023

  • Opt-Out End Date: 02-08-2025

  • Eligible to Order and Refer? 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

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.

Follow-up hospital inpatient care per day, typically 15 minutes

Follow-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 19 times for 11 patients

Follow-up hospital inpatient care per day, typically 25 minutes

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.

This service was performed 186 times for 65 patients

Follow-up hospital inpatient care per day, typically 35 minutes

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.

This service was performed 150 times for 44 patients

Hospital discharge day management, more than 30 minutes

Hospital 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 41 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 23 times for 23 patients

Initial hospital inpatient care per day, typically 70 minutes

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.

This service was performed 44 times for 37 patients

Physician 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 22033 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $100.31
  • Minimum New Patient Price $65.18
  • Maximum New Patient Price $194.86
  • Average New Patient Copayment $25.07
  • Minimum New Patient Copayment $16.29
  • Maximum New Patient Copayment $48.71

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $113.72
  • Minimum Established Patient Price $21.4
  • Maximum Established Patient Price $158.88
  • Average Established Patient Copayment $28.43
  • Minimum Established Patient Copayment $5.35
  • Maximum Established Patient Copayment $39.72

* 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.

Reviews for JOHN ROBERT GRIMSLEY

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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.
1568956886
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2512818512816
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 1 + 2 + 8 + 1 + 8 + 5 + 1 + 2 + 8 + 1 + 6 + 24 = 74
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
80 - 74 = 66

The NPI number 1568956886 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1639465107 JUSTIN CROSS M.D.
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1811208028 HANNA YOON M.D.
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1982124939 KENDALL HANCOCK MD
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1427545649 EMILY TONG
Individual
Specialist/Technologist (Athletic Trainer)3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1548885494DR. CAMILLA MONIKA MAYBEE MD
Individual
Student in an Organized Health Care Education/Training Program3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1184144958 WILLIAM EDWIN TOWNE MD
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1902192479DR. MAHVASH MUJAHID M.D.
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1174191670 AUBREY MASSMANN DO
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1790353902DR. TAM TRAN MD
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1578132262DR. SAMANTHA DAY
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1508436106 AINSLEY LUNDGREN M.D.
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1164195954DR. CATHERINE ELIZABETH DUDEK DPT
Individual
Physical Therapist3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1710336029 ANNA CRUTCHFIELD M.D.
Individual
Family Medicine (Sports Medicine)3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1790250439MS. ROSE ANNA CLAIRE ALLDREDGE-BROWN PA-C
Individual
Physician Assistant3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1386027969DR. YOUNG-KEY CHUNG M.D.
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1043940471 SERENA LIAN MD
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1205566635 SHARON ZHAO
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 291-2020
1679205108 MICHAEL KERRIGAN MD
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1770213100 TIFFANY TSAY MD
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020
1841920279 MEGAN BRYANT DO
Individual
Family Medicine3650 JOSEPH SIEWICK DR STE 400
FAIRFAX, VA 22033
(703) 391-2020

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568956886, enumerated in the NPI registry as an "individual" on June 20, 2018

The provider is located at 3650 Joseph Siewick Dr Ste 400 Fairfax, Va 22033 and the phone number is (703) 391-2020

The provider's speciality is Family Medicine with taxonomy code 207Q00000X

Yes, as of June 20, 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 $100.31 with an average copayment of $25.07 for new patient appointments. Established patients should expect a typical charge of $113.72 and an average copayment of 28.43. 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: Follow-up hospital inpatient care per day, typically 15 minutes, Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Hospital discharge day management, more than 30 minutes, Initial hospital inpatient care per day, typically 50 minutes and Initial hospital inpatient care per day, typically 70 minutes.

No, the provider signed an affidavit on February 08, 2023 to opt-out of the Medicare program. The provider is excluded from the Medicare program until February 08, 2025.

This NPI record was last updated on June 20, 2018. 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].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.