Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY K. JOHNSON M.D.
NPI 1922049402
Specialist in Haverhill, MA

Q: What is Gregory Johnson's NPI number?

The NPI number for Gregory Johnson is 1922049402. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Q: What is Gregory Johnson's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Johnson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days 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.

Active since June 08, 2006PECOS Enrolled

288 GROVELAND ST, HAVERHILL, MA 01830(978) 373-3851(978) 521-6542 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Gregory K. Johnson M.d. NPPES

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

DR. GREGORY K. JOHNSON M.D. (NPI 1922049402) is an individual specialist in Haverhill, Massachusetts, licensed in Massachusetts (76547) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Lawrence General Hospital, and is a graduate of Columbia University College Of Physicians And Surgeons (1984).

NPPES Registry Identity

NPI1922049402

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. GREGORY K. JOHNSONCredential: M.D.

Location Address288 GROVELAND STHaverhill, MA 01830-6669

Mailing Address288 Groveland StHaverhill, MA 01830-6669 · (978) 373-3851 · Fax (978) 521-6542

Phone(978) 373-3851

Fax(978) 521-6542

Sole ProprietorNo

Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1984

Enumeration DateJune 8, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1922049402 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in MA · 76547

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

288 GROVELAND ST, Haverhill, MA 01830

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Other Identifiers 1

Medicaid3097391MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.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. Gregory K. Johnson M.d. 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 ID547209660

PECOS Enrollment IDI20050428000384

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 17

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.

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

355 services73 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.

173 services119 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.

95 services74 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

86 services55 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

43 services28 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

43 services36 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This 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.

43 services39 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

37 services30 patients

Cast supplies, short arm splint, adult (11 years +), fiberglass Q4022

A short arm splint, for adults and children aged 11+, is a support device made of fiberglass. It is applied to the lower part of the arm to immobilize it after an injury or surgery. It helps in healing by restricting movement and providing stability.

35 services27 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

34 services29 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This 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.

34 services34 patients

Application of nonmoveable forearm to hand splint 29125

The application of a non-moveable forearm to hand splint is a procedure where a rigid support is placed on your forearm and hand. This is done to stabilize the area, promote healing, and prevent further injury. It restricts movement, providing rest to the injured part.

33 services27 patients

Injection into tendon or ligament 20550

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

20 services14 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This 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.

18 services18 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

16 services14 patients

Placement of strapping to hand or finger 29280

Strapping to the hand or finger is a procedure where a medical-grade tape is applied to support injured or weak areas. This helps reduce pain, enhance movement, and prevent further injury. It's commonly used for conditions like sprains or arthritis.

14 services11 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Lawrence General Hospital

Acute Care Hospitals · Lawrence, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220010

LocationOne General StreetLawrence, MA 01842 · Essex County

Emergency services Birthing friendly

North Shore Medical Center -

Acute Care Hospitals · Salem, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220035

Location81 Highland AvenueSalem, MA 01970 · Essex County

Emergency services Birthing friendly

Referred Medical Equipment & Supplies CMS DME claims 2

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

Knee orthosis, elastic with condylar pads and joints, with or without patellar control, prefabricated, includes fitting and adjustment L1820

DME-Orthotic Devices · category DF011N

2 suppliers11 claims11 services$118.07 avg. paid by Medicare

Walking boot, pneumatic and/or vacuum, with or without joints, with or without interface material, prefabricated, off-the-shelf L4361

DME-Orthotic Devices · category DF003N

2 suppliers12 claims12 services$287.72 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 17

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

MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC.

Durable Medical Equipment & Medical Supplies

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 373-3851

BERNARD E BRADY M.D.

Orthopaedic Surgery

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 373-3851

PING CUI MD PC

Psychiatry & Neurology (Psychiatry)

288 GROVELAND ST, C2
HAVERHILL, MA 01830

Essex County (978) 521-8810

MR. DONALD BARTLETT II P.A.

Physician Assistant (Medical)

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 373-3851

RIVERSIDE DENTAL ASSOCIATES, INC.

Dentist

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 372-5144

ASSOCIATES IN ORTHOPEDICS, PC

Specialist

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 373-3851

ASSOCIATES IN ORTHOPEDICS

Specialist

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 373-3851

ALLISON TOUMA PA-C

Physician Assistant (Surgical)

288 GROVELAND ST
HAVERHILL, MA 01830

Essex County (978) 373-3851

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 Gregory Johnson's NPI number?

The NPI number for Gregory Johnson is 1922049402. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is Gregory Johnson located?

Gregory Johnson practices at 288 Groveland St, Haverhill, MA 01830. The listed phone number is (978) 373-3851.

What is Gregory Johnson's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Gregory Johnson enrolled in Medicare?

Yes. Gregory Johnson 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 Gregory Johnson accept?

Health plans from WellSense Health Plan list Gregory Johnson 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 Gregory Johnson affiliated with any hospitals?

According to CMS data, Gregory Johnson is affiliated with Lawrence General Hospital and North Shore Medical Center -.

When was this NPI record last updated?

The NPPES record for Gregory Johnson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days 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.