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JOHN MARSHALL KING MD
NPI 1790771269
Family Medicine in Haverhill, MA

Active since September 21, 2005PECOS EnrolledAccepts Medicare Assignment
1 PARK WAY, HAVERHILL, MA 01830(978) 521-3200(978) 557-8798 Get Directions Write a Review

NPPES record last updated: April 24, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Marshall King Md NPPES

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

JOHN MARSHALL KING MD (NPI 1790771269) is an individual family medicine provider in Haverhill, Massachusetts, licensed in Massachusetts (215349) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Louisville School Of Medicine (1998).

NPPES Registry Identity

NPI1790771269
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameJOHN MARSHALL KINGCredential: MD
Location Address1 PARK WAYHaverhill, MA 01830-6278
Mailing Address1 Park WayHaverhill, MA 01830-6278 · (978) 521-3200 · Fax (978) 557-8798
Phone(978) 521-3200
Fax(978) 557-8798
Sole ProprietorNo
Medical School CMSUniversity Of Louisville School Of MedicineGraduated 1998
Enumeration DateSeptember 21, 2005
Last NPPES UpdateApril 24, 2020
NPPES CertifiedApril 24, 2020
✔ NPI 1790771269 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 · 215349
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.
1 PARK WAY, Haverhill, MA 01830
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Other Identifiers 1

Medicaid0177415MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Home State Health, Ambetter Health 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

John Marshall King 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 ID3971660556
PECOS Enrollment IDI20240917003271
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01830 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

Other Providers at the Same Location NPPES 18

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

MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC
Clinical Medical Laboratory
1 PARK WAY, 3RD FL
HAVERHILL, MA 01830
Essex County (978) 521-3200
GEORGE F KWASS M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1 PARK WAY
HAVERHILL, MA 01830
Essex County (978) 521-8680
PATHOLOGY ASSOCIATES, INC
Pathology (Anatomic Pathology & Clinical Pathology)
1 PARK WAY
HAVERHILL, MA 01830
Essex County (978) 469-5404
ASHLEY PAIGE THEROUX NP
Nurse Practitioner (Family)
1 PARK WAY
HAVERHILL, MA 01830
Essex County (888) 227-3762
DR. JASON M HEMMING M.D.
Internal Medicine (Gastroenterology)
1 PARK WAY
HAVERHILL, MA 01830
Essex County (978) 521-3235
SARAH JESSICA SANTANA PERKINS NP
Nurse Practitioner (Pediatrics)
1 PARK WAY
HAVERHILL, MA 01830
Essex County (888) 397-1105
JANA OETTINGER MD
Internal Medicine
1 PARK WAY
HAVERHILL, MA 01830
Essex County (978) 521-3270
MRS. KRISTIN L TOPHAM HOMZE MSN, RNNP, FNP-BC
Nurse Practitioner (Family)
1 PARK WAY
HAVERHILL, MA 01830
Essex County (978) 469-5445

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 King's NPI number?

The NPI number for John King is 1790771269. It was assigned to this individual provider in the NPPES registry on September 21, 2005.

Where is John King located?

John King practices at 1 Park Way, Haverhill, MA 01830. The listed phone number is (978) 521-3200.

What is John King's specialty?

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

Is John King enrolled in Medicare?

Yes. John King 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 King accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Home State Health and Ambetter of Tennessee list John King 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.

When was this NPI record last updated?

The NPPES record for John King was last updated on April 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.