DR. HOWARD MARC HAMMER (D.O.) – Plastic Surgery within the Head & Neck (Otolaryngology) Physician, NPI 1407841539

DR. HOWARD MARC HAMMER (D.O.) is a healthcare provider. based in Yardley, Pennsylvania. specializing in OTOLARYNGOLOGY. They hold the professional credentials D.O.. They hold a License No. 4552 (TN). The NPI Number for DR. HOWARD MARC HAMMER (D.O.) is 1407841539

Main info

Male
30 Years Of Experience
Accepts Medicare Assignment
Name
DR. HOWARD MARC HAMMER (D.O.)
NPI
1407841539
Phone
(215) 321-6660
Address
301 OXFORD VALLEY ROAD
Enumeration Date
14 September 2005
Last Update Date
25 February 2026

Doctor Profile

Medical School Name
PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Secondary Phone
6154414411
Graduation Year
1996 (30 years ago)
PAC ID
9335150598
Group Practice PAC ID
3971408774
Professional Enrollment ID
I20211120000119
Address ID
TN370552851DI125XXDRXX400

Contacts

Secure Messaging
HHAMMER@bucksent.medentdirect.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness95
Years active:20State licenses:1Other names

641 OTOLARYNGOLOGY in PA

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Provider Addresses for DR. HOWARD MARC HAMMER (D.O.)

  • Tax Express, 301, Oxford Valley Road, Roelofs, Yardley, Bucks County, Pennsylvania, 19067, United States

    SUITE 1201A

    YARDLEY, PA 19067

    Phone: (215) 321-6660

    Fax: (215) 321-7828

    Type: Mailing

  • 125 CRESTVIEW PARK DR STE 2

    DICKSON, TN 370552853

    Phone: (615) 446-1370

    Fax: (615) 560-5998

    Type: Location

  • 127 CRESTVIEW PARK DR STE 209

    DICKSON, TN 370552856

    Phone: (615) 446-5121

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 39 Open Payments records for all available years, with a total value of $3,743.

Total Amount is formed as General ($3,743) + Research ($0) + Ownership ($0) = $3,743.

Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Smith+Nephew, Inc. ($2,548).

Total Amount

$3,743

General + Research + Ownership

Payments

39

Total payment records

General Amount

$3,743

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-18

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: 2021-11-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

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
I20091201000029IOtolaryngologyPATBD
I20211120000119IOtolaryngologyTNTBD

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
99213Established patient office or other outpatient visit, 20-29 minutes568329$0
99203New patient office or other outpatient visit, 30-44 minutes344344$0
92557Comprehensive hearing and speech recognition test156156$0
31575Diagnostic exam of voice box using a flexible endoscope12591$0
69210Removal of impacted ear wax8573$0
View full utilization report →

Insurance plans in this area (ZIP 19067)

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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: 3971408774View full group profile
NameSpecialtyState
-TN
Hospitalist, Allergy/ImmunologyNC
Diagnostic RadiologyTN
Physical Therapist In Private PracticeTN
Pulmonary Disease, Critical Care (Intensivists)TN
-TN
Internal MedicineTN
Cardiovascular Disease (Cardiology), Interventional CardiologyTN
Family PracticeTN
-TN

Reviews

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Frequently asked questions

What is the standard ID for DR. HOWARD MARC HAMMER (D.O.) in the U.S.?
In the U.S., DR. HOWARD MARC HAMMER (D.O.) is identified by NPI 1407841539.
Does the public listing show DR. HOWARD MARC HAMMER (D.O.) as active?
DR. HOWARD MARC HAMMER (D.O.)'s NPI record reflects an active status in NPPES.
Which specialty label fits DR. HOWARD MARC HAMMER (D.O.)?
NPPES ties DR. HOWARD MARC HAMMER (D.O.) to Plastic Surgery within the Head & Neck (Otolaryngology) Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.
Is DR. HOWARD MARC HAMMER (D.O.) tied to Yardley, Pennsylvania?
If you are local to Yardley, Pennsylvania, DR. HOWARD MARC HAMMER (D.O.) may be relevant to your search.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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