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DR. JOHN N GRIEVESON MD
NPI 1326018813
Family Medicine in Lowell, MA

Active since January 25, 2006PECOS EnrolledAccepts Medicare Assignment
33 BARTLETT ST STE 204, LOWELL, MA 01852(978) 453-0550(888) 481-1424 Get Directions Write a Review

NPPES record last updated: November 28, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. John N Grieveson Md NPPES

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

DR. JOHN N GRIEVESON MD (NPI 1326018813) is an individual family medicine provider in Lowell, Massachusetts, licensed in Massachusetts (151494) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1326018813
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. JOHN N GRIEVESONCredential: MD
Location Address33 BARTLETT ST STE 204Lowell, MA 01852-1317
Mailing Address33 Bartlett St Ste 204Lowell, MA 01852-1317 · (978) 453-0550 · Fax (888) 481-1424
Phone(978) 453-0550
Fax(888) 481-1424
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateJanuary 25, 2006
Last NPPES UpdateNovember 28, 2022
NPPES CertifiedNovember 28, 2022
✔ NPI 1326018813 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MA · 151494
Definition
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.
33 BARTLETT ST STE 204, Lowell, MA 01852
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Other Names 1

Other Name (5)John N Grieveson-santiago Md

Other Identifiers 1

Medicaid3159213MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.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

Dr. John N Grieveson 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 ID5395811137
PECOS Enrollment IDI20080903000048
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 John Grieveson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lowell Family Medical Care PC
Same address
Family Medicine
33 BARTLETT ST STE 204
Lowell, MA 01852
  • Reassigned Medicare billing, Massachusetts enrollment
NPI 1871720086 (978) 453-0550

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 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.
622 services188 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.
221 services116 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
215 services77 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
139 services139 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
65 services50 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
60 services60 patients

Hospital Affiliations CMS Care Compare

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

Lowell General Hospital

Acute Care Hospitals · Lowell, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220063
Location295 Varnum AvenueLowell, MA 01854 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01852 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

Referred Medical Equipment & Supplies CMS DME claims 13

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

Replacement battery, alkaline (other than j cell), for use with medically necessary home blood glucose monitor owned by patient, each A4233
DME-Other DME · category DE017N
1 supplier15 claims30 services$0.41 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
10 suppliers99 claims350 services$6.27 avg. paid by Medicare
Normal, low and high calibrator solution / chips A4256
DME-Other DME · category DE000N
1 supplier26 claims28 services$2.61 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
12 suppliers75 claims155 services$1.10 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
3 suppliers12 claims12 services$42.34 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers14 claims81 services$1.69 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 2

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

MARK ROMANOWSKY M.D.
Internal Medicine
33 BARTLETT ST STE 204
LOWELL, MA 01852
Middlesex County (978) 458-1293
LOWELL FAMILY MEDICAL CARE PC
Family Medicine
33 BARTLETT ST STE 204
LOWELL, MA 01852
Middlesex County (978) 453-0550

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 Grieveson's NPI number?

The NPI number for John Grieveson is 1326018813. It was assigned to this individual provider in the NPPES registry on January 25, 2006. The provider is also known as John N Grieveson-Santiago MD.

Where is John Grieveson located?

John Grieveson practices at 33 Bartlett St Ste 204, Lowell, MA 01852. The listed phone number is (978) 453-0550.

What is John Grieveson's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is John Grieveson enrolled in Medicare?

Yes. John Grieveson 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 John Grieveson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Grieveson reassigns Medicare benefits to Lowell Family Medical Care PC (Lowell, MA). 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 John Grieveson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Grieveson accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list John Grieveson 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 Grieveson affiliated with any hospitals?

According to CMS data, John Grieveson is affiliated with Lowell General Hospital.

When was this NPI record last updated?

The NPPES record for John Grieveson was last updated on November 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.