JOHN LEE GRIMWOOD M.D.
NPI 1184698391
Pathology - Anatomic Pathology & Clinical Pathology in Alpharetta, GA

Active since February 14, 2006PECOS Enrolled
75/100
CMS Quality Rating
6240 SHILOH RD, ALPHARETTA, GA 30005(855) 422-5628(205) 579-9387 Get Directions Write a Review

NPPES record last updated: February 7, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 7, 2022, Sep 14, 2016 (2 updates tracked since 2016).

About John Lee Grimwood M.d. NPPES

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

JOHN LEE GRIMWOOD M.D. (NPI 1184698391) is an individual anatomic pathology & clinical pathology provider in Alpharetta, Georgia, licensed in California (A54557) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184698391
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameJOHN LEE GRIMWOODCredential: M.D.
Location Address6240 SHILOH RDAlpharetta, GA 30005-8347
Mailing Address6240 Shiloh RdAlpharetta, GA 30005-8347 · (855) 422-5628
Fax(205) 579-9387
Sole ProprietorNo
Enumeration DateFebruary 14, 2006
Last NPPES UpdateFebruary 7, 20222 updates tracked since enumeration
NPPES CertifiedFebruary 7, 2022
✔ NPI 1184698391 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in CA · A54557
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
6240 SHILOH RD, Alpharetta, GA 30005

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John Lee Grimwood M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Grimwood reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anatomic Pathology & Clinical Pathology
6240 SHILOH RD
Alpharetta, GA 30005
  • Reassigned Medicare billing, Georgia enrollment
  • 9 clinicians in this Medicare group

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 6

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.

Special stained specimen slides to identify organisms including interpretation and report 88312
This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.
6,125 services3,237 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
4,578 services4,061 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
1,640 services1,490 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
213 services143 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
179 services167 patients
Pathology examination of tissue using a microscope, moderately low complexity 88304
A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.
128 services121 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30005 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
$130.64 typical visit price
range $56.84 – $172.43
Typical copayment $32.66 (range $14.21 – $43.10)
Most-billed visit code 99204
Established Patient
$100.20 typical visit price
range $18.22 – $140.40
Typical copayment $25.05 (range $4.55 – $35.10)
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

Other Providers at the Same Location NPPES 11

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

Clinical Medical Laboratory
6240 SHILOH RD
ALPHARETTA, GA 30005
Clinical Medical Laboratory
6240 SHILOH RD
ALPHARETTA, GA 30005
Pathology (Anatomic Pathology & Clinical Pathology)
6240 SHILOH RD
ALPHARETTA, GA 30005
Pathology (Dermatopathology)
6240 SHILOH RD
ALPHARETTA, GA 30005
Pathology (Anatomic Pathology & Clinical Pathology)
6240 SHILOH RD
ALPHARETTA, GA 30005
Pathology (Dermatopathology)
6240 SHILOH RD
ALPHARETTA, GA 30005
Pathology (Anatomic Pathology)
6240 SHILOH RD
ALPHARETTA, GA 30005
Dermatology (Dermatopathology)
6240 SHILOH RD
ALPHARETTA, GA 30005

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 Grimwood's NPI number?

The NPI number for John Grimwood is 1184698391. It was assigned to this individual provider in the NPPES registry on February 14, 2006.

Where is John Grimwood located?

John Grimwood practices at 6240 Shiloh Rd, Alpharetta, GA 30005. The listed phone number is (855) 422-5628.

What is John Grimwood's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is John Grimwood enrolled in Medicare?

Yes. John Grimwood is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for John Grimwood's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Grimwood reassigns Medicare benefits to Bakotic Pathology Associates, LLC (Alpharetta, GA). 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 Grimwood's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Grimwood accept?

Health plans from Blue Cross and Blue Shield of Texas list John Grimwood 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 Grimwood was last updated on February 7, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.