1. Home
  2. Directory
  3. New Hampshire
  4. Portsmouth
  5. Plastic Surgery
  6. NPI Profile

DR. ALEXANDER HENRY SLOCUM JR. M.D., PH.D.
NPI 1275913733
Plastic Surgery in Portsmouth, NH

Active since May 31, 2015PECOS EnrolledAccepts Medicare Assignment
100 BORTHWICK AVE STE 220, PORTSMOUTH, NH 03801(603) 777-5606 Get Directions Write a Review

NPPES record last updated: April 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 20, 2026, Nov 16, 2023, Nov 10, 2023 and 3 more (6 updates tracked since 2019).

About Dr. Alexander Henry Slocum Jr. M.d., Ph.d. NPPES

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

DR. ALEXANDER HENRY SLOCUM JR. M.D., PH.D. (NPI 1275913733) is an individual plastic surgery provider in Portsmouth, New Hampshire, licensed in New Hampshire (20908) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Jc Edwards School Of Medicine, Marshall University (2015).

NPPES Registry Identity

NPI1275913733
Entity TypeIndividualMale
Primary Taxonomy208200000X
Provider Legal NameDR. ALEXANDER HENRY SLOCUM JR.Credential: M.D., PH.D.
Location Address100 BORTHWICK AVE STE 220Portsmouth, NH 03801-4115
Mailing Address100 Borthwick Ave Ste 220Portsmouth, NH 03801-4115 · (603) 956-6059 · Fax (603) 956-6091
Phone(603) 777-5606
Sole ProprietorYes
Medical School CMSJc Edwards School Of Medicine, Marshall UniversityGraduated 2015
Enumeration DateMay 31, 2015
Last NPPES UpdateApril 20, 20266 updates tracked since enumeration
NPPES CertifiedApril 20, 2026
✔ NPI 1275913733 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPlastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208200000X
Licenses✔ Licensed in NH · 20908✔ Licensed in MA · 10163216
Definition
A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.
Also ListedSurgery · Plastic and Reconstructive SurgeryTaxonomy 2086S0122X · License 20908 (NH), 67919-20 (WI)
100 BORTHWICK AVE STE 220, Portsmouth, NH 03801
Open in Google Maps ↗

Secondary Practice Location 1

Location 120 Ashburton PlBoston, MA 02108-2705 · Phone (617) 390-8910

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.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

Dr. Alexander Henry Slocum Jr. M.d., Ph.d. 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 ID4981914058
PECOS Enrollment IDI20210819002850
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 03801 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
$89.14 typical visit price
range $57.75 – $174.26
Typical copayment $22.28 (range $14.43 – $43.56)
Most-billed visit code 99203
Established Patient
$71.85 typical visit price
range $18.70 – $142.15
Typical copayment $17.96 (range $4.67 – $35.53)
Most-billed visit code 99213
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

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

SEACOAST PLASTIC SURGERY AND MEDICAL AESTHETICS, PLLC
Plastic Surgery
100 BORTHWICK AVE STE 220
PORTSMOUTH, NH 03801
Rockingham County (603) 956-6059

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 Alexander Slocum's NPI number?

The NPI number for Alexander Slocum is 1275913733. It was assigned to this individual provider in the NPPES registry on May 31, 2015.

Where is Alexander Slocum located?

Alexander Slocum practices at 100 Borthwick Ave Ste 220, Portsmouth, NH 03801. The listed phone number is (603) 777-5606.

What is Alexander Slocum's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

Is Alexander Slocum enrolled in Medicare?

Yes. Alexander Slocum 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 Alexander Slocum accept?

Health plans from Harvard Pilgrim Health Care list Alexander Slocum 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 Alexander Slocum was last updated on April 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.