DR. AHMAD DANIYAL SIDDIQUI MD
NPI 1700873783
Internal Medicine - Hematology & Oncology in Northampton, MA

Q: What is Ahmad Siddiqui's NPI number?

The NPI number for Ahmad Siddiqui is 1700873783. It was assigned to this individual provider in the NPPES registry on October 4, 2005.

Q: What is Ahmad Siddiqui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Ahmad Siddiqui was last updated on October 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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 October 04, 2005PECOS EnrolledAccepts Medicare Assignment

30 LOCUST ST, NORTHAMPTON, MA 01060(413) 582-2000 Get Directions Write a Review

NPPES record last updated: October 29, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 9, 2024, May 22, 2023, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

On this page

About Dr. Ahmad Daniyal Siddiqui Md NPPES

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

DR. AHMAD DANIYAL SIDDIQUI MD (NPI 1700873783) is an individual hematology & oncology provider in Northampton, Massachusetts, licensed in Massachusetts (226914) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1700873783

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. AHMAD DANIYAL SIDDIQUICredential: MD

Location Address30 LOCUST STNorthampton, MA 01060-2052

Mailing AddressPo Box 415348Boston, MA 02241-5348

Phone(413) 582-2000

Sole ProprietorNo

Medical School CMSOtherGraduated 1993

Enumeration DateOctober 4, 2005

Last NPPES UpdateOctober 29, 20244 updates tracked since enumeration

NPPES CertifiedOctober 29, 2024

✔ NPI 1700873783 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

Licenses✔ Licensed in MA · 226914✔ Licensed in NH · 33604

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License 226914 (MA)

30 LOCUST ST, Northampton, MA 01060

Open in Google Maps ↗

Secondary Practice Locations 4

Location 11 Eaton PlWorcester, MA 01608-1232 · Phone (508) 363-6515 · Fax (508) 363-7515

Location 2123 Summer StWorcester, MA 01608-1216 · Phone (508) 363-6515 · Fax (508) 363-7515

Location 3University of Massachusetts Medical Center, 55 Lake Avenue NorthWorcester, MA 01655 · Phone (508) 856-3903

Location 4789 Central AveDover, NH 03820-2526 · Phone (603) 742-8787

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, WellSense Health Plan.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. Ahmad Daniyal Siddiqui 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 ID7315029469

PECOS Enrollment IDI20080128000618, I20240916001291

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 Reassignments

Medicare enrollment records show Ahmad Siddiqui reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mass General Brigham Medical Group Western Massachusetts Inc

Same address

Family Medicine

30 LOCUST ST
Northampton, MA 01060

Reassigned Medicare billing, Massachusetts enrollment
539 clinicians in this Medicare group

NPI 1295787919 (413) 582-2898

Athol Memorial Hospital Incorporated

29 mi

Critical Access

2033 MAIN STREET
Athol, MA 01331

Reassigned Medicare billing, Massachusetts enrollment
324 clinicians in this Medicare group

NPI 1336120047 (978) 249-3511

Henry Heywood Memorial Hospital

38 mi

Hospitalist

242 GREEN ST
Gardner, MA 01440

Reassigned Medicare billing, Massachusetts enrollment
344 clinicians in this Medicare group

NPI 1205448701 (978) 630-6944

Saint Vincent Physician Services, Inc.

44 mi

Family Medicine

123 SUMMER ST STE 279
Worcester, MA 01608

Reassigned Medicare billing, Massachusetts enrollment
197 clinicians in this Medicare group

NPI 1013997329 (508) 363-6040

The General Hospital Corporation

81 mi

General Acute Care Hospital

55 FRUIT ST, BULFINCH 360
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,234 clinicians in this Medicare group

NPI 1023049236 (617) 726-2000

Massachusetts General Physicians Organization Inc

81 mi

Dermatology

55 FRUIT ST, BUL 2
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,360 clinicians in this Medicare group

NPI 1801874573 (617) 724-0287

Huggins Hospital

107 mi

Family Medicine

27 NEW DURHAM ROAD
Alton, NH 03809

Reassigned Medicare billing, New Hampshire enrollment
Also billed through NPI 1942018353 (New Hampshire)
43 clinicians in this Medicare group

NPI 1871534792 (603) 875-6151

Wentworth Douglass Physician Corporation

108 mi

Diabetes Educator

10 MEMBERS WAY FL 5
Dover, NH 03820

Reassigned Medicare billing, New Hampshire enrollment
559 clinicians in this Medicare group

NPI 1336751825 (603) 609-6800

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 11

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 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.

453 services212 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.

304 services163 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

118 services83 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

99 services99 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

45 services43 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

39 services35 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.

32 services26 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

32 services32 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.

21 services21 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

18 services11 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.

13 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220015

Location30 Locust StreetNorthampton, MA 01060 · Hampshire County

Emergency services Birthing friendly

Heywood Hospital

Acute Care Hospitals · Gardner, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220095

Location242 Green StreetGardner, MA 01440 · Worcester County

Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220110

Location75 Francis StreetBoston, MA 02115 · Suffolk County

Emergency services Birthing friendly

Wentworth-Douglass Hospital

Acute Care Hospitals · Dover, NH

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number300018

Location789 Central AveDover, NH 03820 · Strafford County

Emergency services Birthing friendly

Huggins Hospital

Critical Access Hospitals · Wolfeboro, NH

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number301312

Location240 South Main StreetWolfeboro, NH 03894 · Carroll County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01060 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

$177.36 typical visit price

range $58.86 – $177.36

Typical copayment $44.34 (range $14.71 – $44.34)

Most-billed visit code 99205

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 20

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

REID MOTHA PA-C

Physician Assistant

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2000

KIRSTEN CHEREE BRINGARDNER PA-C

Physician Assistant

30 LOCUST ST, COOLEY DICKINSON HOSPITALIST PROGRAM
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2563

BRIAN JOHNSON MD

Anesthesiology

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2105

ALEXANDER VOSHCHIN MD

Anesthesiology

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2105

ALYS MALCOLM M.D.

Internal Medicine (Hematology & Oncology)

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2900

CHRISTINE KRINITSYN PA-C

Physician Assistant (Medical)

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2363

KATHERINE MARY JAYCOX LICSW

Social Worker

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2396

MAE ELIZABETH BECKFORD-BRUNO RN

Student in an Organized Health Care Education/Training Program

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2000

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 Ahmad Siddiqui's NPI number?

The NPI number for Ahmad Siddiqui is 1700873783. It was assigned to this individual provider in the NPPES registry on October 4, 2005.

Where is Ahmad Siddiqui located?

Ahmad Siddiqui practices at 30 Locust St, Northampton, MA 01060. The listed phone number is (413) 582-2000.

What is Ahmad Siddiqui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Ahmad Siddiqui enrolled in Medicare?

Yes. Ahmad Siddiqui 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 organizations bill Medicare for Ahmad Siddiqui's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ahmad Siddiqui reassigns Medicare benefits to 8 organizations: Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA), Athol Memorial Hospital Incorporated (Athol, MA), Henry Heywood Memorial Hospital (Gardner, MA), Saint Vincent Physician Services, Inc. (Worcester, MA), The General Hospital Corporation (Boston, MA) and 3 more organizations, listed in the Medicare section above. Each 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 Ahmad Siddiqui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ahmad Siddiqui accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list Ahmad Siddiqui 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 Ahmad Siddiqui affiliated with any hospitals?

According to CMS data, Ahmad Siddiqui is affiliated with Cooley Dickinson Hospital Inc,the, Heywood Hospital, Brigham And Women's Hospital, Wentworth-Douglass Hospital and Huggins Hospital.

When was this NPI record last updated?

The NPPES record for Ahmad Siddiqui was last updated on October 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.