WILLIAM A NISH (M.D.) – Allergy & Immunology Physician, NPI 1821097643

WILLIAM A NISH (M.D.) is a healthcare provider. based in Braselton, Georgia. specializing in ALLERGY/IMMUNOLOGY, PEDIATRIC MEDICINE. They hold the professional credentials M.D.. They hold a License No. 031804 (GA). The NPI Number for WILLIAM A NISH (M.D.) is 1821097643

Main info

Male
Sole Proprietor
40 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM A NISH (M.D.)
NPI
1821097643
Phone
(770) 848-9345
Address
1515 River Pl Ste 380
Enumeration Date
14 July 2005
Last Update Date
7 October 2020

Doctor Profile

Medical School Name
MEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Secondary Phone
7624668678
Graduation Year
1986 (40 years ago)
PAC ID
0143497552
Group Practice PAC ID
6901898386
Professional Enrollment ID
I20120125000210
Address ID
GA305012089GA2500XPKWY300

Contacts

Secure Messaging
wnish29402@nghs.gadirect.net
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience78
Completeness85
Years active:20State licenses:2Other namesUpdated within 12 months

137 ALLERGY/IMMUNOLOGY in GA

Provider Addresses for WILLIAM A NISH (M.D.)

  • 1515 River Pl Ste 380

    Braselton, GA 305175605

    Phone: (770) 848-9345

    Type: Location

  • Rice Box, Atlanta BeltLine Eastside Trail, Atlanta, Georgia, 30308, United States

    ATLANTA, GA 303742616

    Phone: (770) 219-8420

    Type: Mailing

  • 2510, Limestone Parkway, Woodlake, Gainesville, Hall County, Georgia, 30501, United States

    GAINESVILLE, GA 305012089

    Phone: (770) 534-9933

    Fax: (770) 534-8999

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 126 Open Payments records for all available years, with a total value of $3,072.

Total Amount is formed as General ($3,072) + Research ($0) + Ownership ($0) = $3,072.

Last reported payment date: 2024-12-23 • Largest payer in this snapshot: GENZYME CORPORATION ($621).

Total Amount

$3,072

General + Research + Ownership

Payments

126

Total payment records

General Amount

$3,072

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-23

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2012-01-25

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20120125000210IAllergy/ImmunologyGATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
95004Test for allergy using allergenic extract1,36342$0
95024Test for allergy using allergenic extract injected into skin30137$0
94060Test to measure expiratory airflow and volume changes before and after medication administration217103$0
95165Professional service for preparation and provision of 1 or more antigens19711$0
99213Established patient office or other outpatient visit, 20-29 minutes177102$0
View full utilization report →

Insurance plans in this area (ZIP 30517)

Loading plans...

Provider's Procedures

WILLIAM A NISH (M.D.) performs procedures in ALLERGY/IMMUNOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ALLERGY/IMMUNOLOGYGA90670Pneumococcal vaccine for injection into muscle1414
ALLERGY/IMMUNOLOGYGA94060Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration229129

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6901898386View full group profile
NameSpecialtyState
O B S T E T R I C S/ G Y N E C O L O G YGA
-GA
-GA
A N E S T H E S I O L O G YGA
-GA
-GA
Physician AssistantGA
Nurse PractitionerGA
Surgical Oncology, General SurgeryNJ
Pulmonary DiseaseNY

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is WILLIAM A NISH (M.D.)'s NPI number?
WILLIAM A NISH (M.D.)'s NPI is 1821097643 — the number used across U.S. healthcare to identify this provider.
Would WILLIAM A NISH (M.D.) appear as active to a payer?
You can treat WILLIAM A NISH (M.D.) as active for directory purposes; confirm clinical privileges separately.
What clinical focus is listed for WILLIAM A NISH (M.D.)?
At a glance, WILLIAM A NISH (M.D.) is tied to Allergy & Immunology Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for WILLIAM A NISH (M.D.)?
Travel planning: use Braselton, Georgia as the reference point for WILLIAM A NISH (M.D.), then confirm.
What does 3 location(s) imply?
3 practice locations appear in the available data.

Similar Providers

DR. WILLIAM KENNEDY DOLEN (M.D.)

Pediatric Allergy/Immunology Physician
Walton Way, Gracetown, Shire Of Augusta Margaret River, Western Australia, Australia
NPI: 1649274630

MICHAEL JAMES MALONEY (M.D.)

Allergy & Immunology Physician
100, College Avenue Southeast, Gainesville, Hall County, Georgia, 30501, United States
NPI: 1912901844

DR. LOREN W JR. HUNT (M.D.)

Allergy & Immunology Physician
Box Street, Port Charlotte, Charlotte County, Florida, 33948, United States
NPI: 1346246071

DR. ANTHONY JOHN DEUTSCH (M.D.)

Allergy & Immunology Physician
330, Hawthorne Lane, Hawthorne Park, Athens, Athens-Clarke County, Georgia, 30606, United States
NPI: 1457357139

DR. GENA MARIE BONITATIBUS (M.D.)

Allergy & Immunology Physician
4350 TOWNE CENTRE DR STE 1500
NPI: 1184621310

DR. JENNIFER KAY APPLEYARD (MD)

Allergy & Immunology Physician
119 Hill Pond Ln
NPI: 1255330486

KELVIN J HOLLOWAY (MD)

Pediatrics Physician
Piedmont Avenue Northeast, Atlanta, Georgia, 30308, United States
NPI: 1720088602

DR. MICHAEL CARVER BELCON (MD)

Rheumatology Physician
1400, Walton Way, Augusta, Richmond County, Georgia, 30901, United States
NPI: 1184624876